US3067531A
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Assignee: ASPEN BOOT Ltd
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Filing: 1961-03-15
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Granted: 1962-12-11
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Expires: 1981-03-15
Abstract
No abstract record available.
Inventors
- 👤 Bruce A Scott
- 👤 Robert R Oden
- 👤 David J Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:18
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/04; A43B5/0427; A43B5/0466
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |