US2840593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine containing diesters of camphoric acid
Assignee: EIDP Inc
•
Filing: 1956-05-11
•
Granted: 1958-06-24
•
Expires: 1976-05-11
Abstract
No abstract record available.
Inventors
- 👤 Earl E Sommers
- 👤 Bernard M Sturgis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:07
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/66; C07C69/67; C07C69/708; C07C2601/00; C07C2601/06; C07C2601/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
THE COMPOUND
Claim 2
Dependent Claim
2 words
THE COMPOUND
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |