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US2708137A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1951-06-23
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Granted: 1955-05-10
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Expires: 1971-06-23
Abstract
No abstract record available.
Inventors
- 👤 Herman H Poelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:23
CPC Classifications
B; B60; B60J; B60J7/00; B60J7/08; B60J7/12; B60J7/1226; B60J7/123; B60J7/1234; B60J7/1243; B60R; B60R13/00; B60R13/02; B60R13/0212
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |