Patent US3211752A successfully refreshed from Google Patents.
US3211752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linking polymers
Assignee: Hercules Powder Co
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Filing: 1962-02-12
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Granted: 1965-10-12
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Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 David S Breslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:39
CPC Classifications
C; C07; C07C; C07C247/00; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/27; C08K5/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A MONOAZIDOFORMATE HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A MONOAZIDOFORMATE HAVING THE 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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |