US2476527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible gel composition and method of preparation
Assignee: GAF Chemicals Corp
•
Filing: 1944-10-25
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Granted: 1949-07-19
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Expires: 1964-10-25
Abstract
No abstract record available.
Inventors
- 👤 Carl E Barnes
- 👤 Jr William O Ney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:46
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1976679A
Cited
US2006002A
Cited
US2120933A
Cited
US2200709A
Cited
US2244703A
Cited
US2205883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |