US2477787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone insulating paper material
Assignee: Individual
•
Filing: 1945-11-15
•
Granted: 1949-08-02
•
Expires: 1965-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold S Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:23
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/12; B65D81/00; B65D81/38; B65D81/3837; B65D81/3841
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US914238A
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US1142131A
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US1265162A
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US1361370A
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US1856986A
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US1699843A
Cited
US1883450A
Cited
US2099055A
Cited
US2103318A
Cited
US2165327A
Cited
US2258218A
Cited
US2307854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |