US3367947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amidation of 2-halo-acetates
Assignee: Shell USA Inc
•
Filing: 1964-11-30
•
Granted: 1968-02-06
•
Expires: 1984-11-30
Abstract
No abstract record available.
Inventors
- 👤 John W Cornforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:17
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/14; C07D317/30; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/113
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
THE ESTER OF THE FORMULA:
Claim 2
Dependent Claim
5 words
THE ESTER OF THE FORMULA:
Claim 3
Dependent Claim
5 words
THE AMIDE OF THE FORMULA:
Claim 4
Dependent Claim
5 words
THE AMIDE 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) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |