US3210359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-carboxypiperidides
Assignee: Reilly Tar and Chemical Corp
•
Filing: 1964-10-19
•
Granted: 1965-10-05
•
Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Francis E Cislak
- 👤 Frank A Karnatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:27
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/60; C07D211/62; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G69/00; C08G69/02; C08G69/26; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A BIS-CARBOXYPIPERIDIDE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A BIS-CARBOXYPIPERIDIDE OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |