US2816755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making shingled strips
Assignee: Unisys Corp
•
Filing: 1951-10-05
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Granted: 1957-12-17
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Expires: 1971-10-05
Abstract
No abstract record available.
Inventors
- 👤 Theodore P Dusenbury
- 👤 Ellsworth Phil
- 👤 Charles G Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:31
CPC Classifications
B; B42; B42C; B42C9/00; B42C9/0081; B42C9/0087; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1749; Y10T156/1751; Y10T156/1761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1440856A
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US2371179A
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US1418145A
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US2295073A
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US2266171A
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US2295055A
Cited
US2476250A
Cited
US2627809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |