US3267126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complex spirocyclic esters of boric acid
Assignee: FMC Corp
•
Filing: 1962-11-08
•
Granted: 1966-08-16
•
Expires: 1982-11-08
Abstract
No abstract record available.
Inventors
- 👤 Weil Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:40
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
A SPIROCYCLIC BORATE ESTER OF THE FORMULA
Claim 2
Dependent Claim
7 words
A SPIROCYCLIC BORATE ESTER OF THE FORMULA
Claim 3
Dependent Claim
7 words
A CYCLIC BORATE ESTER HAVING THE FORMULA
Claim 4
Dependent Claim
7 words
A CYCLIC BORATE ESTER HAVING THE FORMULA
References Cited (Backward Citations)
US2902450A
Cited
US3030374A
Cited
US3009791A
Cited
US2987519A
Cited
US3033892A
Cited
US3053880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |