US3400749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bifold door handle
Assignee: LELAND C SMITH
•
Filing: 1966-04-12
•
Granted: 1968-09-10
•
Expires: 1986-04-12
Abstract
No abstract record available.
Inventors
- 👤 Leland C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:46
CPC Classifications
E; E05; E05B; E05B1/00; E05B1/0015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1318433A
Cited
US2014591A
Cited
US1050680A
Cited
US1630680A
Cited
US1746983A
Cited
US2713897A
Cited
US3198242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |