Extensions — US Patent 9363997

For US Patent 9363997, here's a detailed breakdown of its patent term adjustments (PTA), patent term extensions (PTE), continuation/divisional applications, related family members, and projected expiration date:

Patent Term Adjustments (PTA)

Patent Term Adjustments (PTA) are granted to compensate for delays caused by the USPTO during the prosecution of a patent application. This can include delays in issuing a first Office Action, responding to applicant replies, or issuing the patent within certain timeframes. The USPTO calculates PTA at the time of patent issuance.

As of the current date (April 26, 2026), specific details on any PTA awarded to US Patent 9363997 are not available in the provided snippets. To determine the exact PTA, one would typically need to examine the Issue Notification Letter for the patent or use the USPTO's Patent Center.

Patent Term Extensions (PTE)

Patent Term Extensions (PTE) are available for patents claiming certain products (e.g., human drug products, medical devices, food additives) to restore patent term lost due to regulatory review periods by agencies like the FDA.

Based on the nature of the invention (methods and compositions for generating peracetic acid, primarily for disinfection and sanitization in various industries, including food and beverage processing), it's possible that the patent owner could apply for a PTE if the claimed invention or a product utilizing it required premarket regulatory approval. However, the provided information does not indicate that US Patent 9363997 has received any PTE. Applications for PTE are generally filed within 60 days of marketing approval of the product.

Continuation and Divisional Applications

US Patent 9363997 is part of a patent family with several related applications. It is explicitly stated that US 9363997 is a divisional application.

Here's the lineage provided in the patent text and search results:

US 9363997 (filed April 8, 2015) is a divisional application of U.S. patent application Ser. No. 14/019,296, filed on September 5, 2013.
U.S. patent application Ser. No. 14/019,296, in turn, is a divisional of prior application Ser. No. 13/065,553, filed on March 24, 2011, now U.S. Pat. No. 8,546,449.

This establishes a clear chain of priority:

Grandparent Patent: U.S. Pat. No. 8,546,449 (filed March 24, 2011)
Parent Application/Patent: U.S. Patent Application No. 14/019,296 (filed September 5, 2013), which issued as U.S. Patent No. 9,370,180.
Current Patent: US 9363997 (filed April 8, 2015) is a divisional of US 14/019,296.

Related Family Members

The patent is part of a larger family of patents assigned to Enviro Tech Chemical Services Inc. In addition to the parent and grandparent identified above, other related family members mentioned include:

US 9,737,072
US 9,730,443
US 10,004,230
US 10,912,321
U.S. Patent Application Publication No. 20150208652A1

These patents and applications all share the same priority date of March 24, 2011.

Projected Expiration Date

The general rule for utility patents filed on or after June 8, 1995, is that the term expires 20 years from the earliest effective filing date of the application, with any applicable Patent Term Adjustment (PTA) added. For continuation or divisional applications, the 20-year term is calculated from the filing date of the earliest application in the priority chain.

In this case, the earliest priority date for US 9363997 is March 24, 2011, derived from its grandparent U.S. Pat. No. 8,546,449.

Therefore, the nominal expiration date (before considering any PTA or PTE) would be 20 years from March 24, 2011.

Nominal Expiration Date: March 24, 2011 + 20 years = March 24, 2031.

Google Patents also lists an "Anticipated expiration" date of 2031-03-24, which aligns with this calculation.

As previously mentioned, specific PTA information for US 9363997 is not available in the provided snippets. Without this information, the definitive expiration date cannot be precisely calculated. However, assuming no PTA or PTE, the projected expiration date is March 24, 2031.