Patent US3329663A successfully refreshed from Google Patents.
US3329663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Allyl azaphosphorine compounds and polymers thereof
Assignee: Wyeth Holdings LLC
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Filing: 1964-04-07
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Granted: 1967-07-04
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Expires: 1984-04-07
Abstract
No abstract record available.
Inventors
- 👤 Allcock Harry Rex
- 👤 Thomas Walter Moreland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:07
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6581; C07F9/65812; C07F9/65814; C08; C08F; C08F30/00; C08F30/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A METHOD FOR THE PRODUCTION OF A POLYMER HAVING A HIGH THERMAL STABILITY WHICH COMPRISES CONTACTING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) THOSE HAVING THE FORMULA
Claim 2
Independent Claim
29 words
A METHOD FOR THE PRODUCTION OF A POLYMER HAVING A HIGH THERMAL STABILITY WHICH COMPRISES CONTACTING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) THOSE HAVING 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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |