US3427078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless track with hollow inflatable treads
Assignee: Individual
•
Filing: 1966-10-20
•
Granted: 1969-02-11
•
Expires: 1986-10-20
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:55
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2416679A
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US2359586A
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US2413850A
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US2900210A
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US3074764A
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US3236525A
Cited
US3170533A
Cited
US3244458A
Cited
US3299978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |