US2967877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounds containing boron and silicon
Assignee: Wyeth Holdings LLC
•
Filing: 1958-11-19
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Granted: 1961-01-10
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Expires: 1978-11-19
Abstract
No abstract record available.
Inventors
- 👤 Stephen J Groszos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/55; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0836; G; G21; G21F; G21F1/00; G21F1/02; G21F1/10; C10; C10M; C10M2227/00; C10M2227/08; C10M2227/081; C10N; C10N2010/00; C10N2010/06; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPOUND REPRESENTED BY THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
A COMPOUND REPRESENTED BY THE GENERAL FORMULA
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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |