US2805107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nylon roller assembly
Assignee: Crawford Door Co
•
Filing: 1955-06-21
•
Granted: 1957-09-03
•
Expires: 1975-06-21
Abstract
No abstract record available.
Inventors
- 👤 Warker Merle M Van De
- 👤 Butler Rollo Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:29
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/006; E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/0626; E05D15/063; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/688; E05Y2800/00; E05Y2800/40; E05Y2800/422; F16C2350/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49689
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1975296A
Cited
US1963592A
Cited
US2112754A
Cited
US2449943A
Cited
US2586087A
Cited
US2614898A
Cited
FR1092766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |