Patent US3148724A successfully refreshed from Google Patents.
US3148724A
Expired / Lapsed
US
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Roll-up door
Assignee: Fruehauf Corp
•
Filing: 1962-12-31
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Granted: 1964-09-15
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Chieger George
- 👤 Theodor C Schubach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:48
CPC Classifications
B; B60; B60J; B60J5/00; B60J5/10; B60J5/12; B60J5/14; B61; B61D; B61D19/00; B61D19/003; B61D19/005; B61D19/006; E; E06; E06B; E06B9/00; E06B9/02; E06B9/08; E06B9/11; E06B9/15; E06B2009/1505; E06B2009/1522
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US546858A
Cited
CA614566A
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US1707287A
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US2307560A
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US2311470A
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US2831537A
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US2952313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |