US2696250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling door
Assignee: Individual
•
Filing: 1953-08-28
•
Granted: 1954-12-07
•
Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 Michelman Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:16
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08; E06B9/11; E06B9/13; E06B9/56; E06B9/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1375219A
Cited
US1994142A
Cited
US2019084A
Cited
US2097242A
Cited
US2350286A
Cited
US2520618A
Cited
US2630597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |