Patent US2430273A successfully refreshed from Google Patents.
US2493968A
Expired / Lapsed
US
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Method and apparatus for making batt-covered sheets
Assignee: Individual
•
Filing: 1946-10-17
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Granted: 1950-01-10
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Expires: 1966-10-17
Abstract
No abstract record available.
Inventors
- 👤 Hepner Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:25
CPC Classifications
B; B32; B32B; B32B27/00; B31; B31D; B31D5/00; B31D5/0039; B31D5/006; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T156/102; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1484336A
Cited
US1606884A
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US2287801A
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US2308568A
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US2322298A
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US2423870A
Cited
US2378801A
Cited
US2398398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |