US3538628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Footwear
Assignee: American LaFrance LLC
•
Filing: 1968-09-23
•
Granted: 1970-11-10
•
Expires: 1988-09-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur Einstein Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:24
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/24; A43B13/00; A43B13/28; A43B13/36; A43B3/00; A43B3/0036; A43B3/0078; A43B3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190523401A
Cited
US1041185A
Cited
US2151341A
Cited
US2258265A
Cited
CH266627A
Cited
US2754598A
Cited
US2707341A
Cited
US3099884A
Cited
US3402485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |