US2571818A
Expired / Lapsed
US
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Assignee: Overhead Door Corp
•
Filing: 1948-01-21
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Granted: 1951-10-16
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Expires: 1968-01-21
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Blodgett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:44
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/16; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102; Y10T74/2104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US633790A
Cited
US1131953A
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US1436422A
Cited
US1774440A
Cited
US2163864A
Cited
US2288435A
Cited
US2387149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |