US2937699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding door
Assignee: Individual
•
Filing: 1958-03-24
•
Granted: 1960-05-24
•
Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Ducharme Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:23
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/92; E06B3/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US381066A
Cited
US1290176A
Cited
US1907021A
Cited
US2071660A
Cited
US2194415A
Cited
FI21122A
Cited
US2801687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |