Patent US3356769A successfully refreshed from Google Patents.
US3356769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphonitrilic halide derivatives and adducts thereof
Assignee: Wyeth Holdings LLC
•
Filing: 1964-07-13
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Granted: 1967-12-05
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Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Allcock Harry Rex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:22
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6581; C07F9/65812; C07F9/65815
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
THE COMPOUND 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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |