Patent US2643714A successfully refreshed from Google Patents.
US2643714A
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US
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Overhead door structure
Assignee: Frantz Manufacturing Co
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Filing: 1950-08-10
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Granted: 1953-06-30
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Expires: 1970-08-10
Abstract
No abstract record available.
Inventors
- 👤 Cecil R Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:03
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/16; E05D15/24; E05F; E05F5/00; E05F5/003; E05D13/00; E05D13/10; E05D13/12; E05D13/1207; E05D13/1215; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/106; Y; Y10; Y10S; Y10S16/00; Y10S16/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |