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US2951671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier
Assignee: Individual
•
Filing: 1957-04-15
•
Granted: 1960-09-06
•
Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 Frederick L O Roehrig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:25
CPC Classifications
B; B60; B60R; B60R11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US167620A
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US300704A
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US475787A
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US1463962A
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US1936517A
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US2010440A
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US2221659A
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US2206775A
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US2420603A
Cited
US2663249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |