US2373914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming asbestos papers with gel binders
Assignee: Johns Manville Corp
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Filing: 1940-04-12
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Granted: 1945-04-17
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Expires: 1960-04-12
Abstract
No abstract record available.
Inventors
- 👤 Robert G Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/52; B28B1/526; C; C04; C04B; C04B28/00; C04B28/18
Claims Analysis
Total Claims: 0
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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) | 1948-04-16 | 1948-10-16 | 1949-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-16 | 1952-10-16 | 1953-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-16 | 1956-10-16 | 1957-04-17 | $7700.00 | Window Closed / Lapsed |