US2568808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic overhead door
Assignee: Individual
•
Filing: 1946-03-22
•
Granted: 1951-09-25
•
Expires: 1966-03-22
Abstract
No abstract record available.
Inventors
- 👤 Karl E Johanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:00
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/668; E05F15/40; E05F15/41; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1384464A
Cited
US1102921A
Cited
US1378146A
Cited
US1405640A
Cited
US1472864A
Cited
US1471454A
Cited
US1651985A
Cited
US1745990A
Cited
US1972695A
Cited
US1897391A
Cited
US2000515A
Cited
US2056174A
Cited
US2070058A
Cited
US2099191A
Cited
US2253170A
Cited
US2335336A
Cited
US2315571A
Cited
US2378262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |