US3477539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for a vehicle
Assignee: Doosan Bobcat North America Inc
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Filing: 1967-12-28
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Granted: 1969-11-11
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Expires: 1987-12-28
Abstract
No abstract record available.
Inventors
- 👤 Gary L De Pung
- 👤 Louis A Haddock Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:33
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/288; B; B62; B62D; B62D51/00; B62D51/001; B62D51/002; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/20; H02P7/03; B62B; B62B5/00; B62B5/06; B62B5/063
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) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |