US3412883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material carrier apparatus
Assignee: Individual
•
Filing: 1966-02-16
•
Granted: 1968-11-26
•
Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Bert A Birdsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:49
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1104801A
Cited
US1409916A
Cited
US1702092A
Cited
US2381783A
Cited
US2636628A
Cited
US2827204A
Cited
GB1015386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |