US2675928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: W J WARBURTON ASSOCIATES Inc
•
Filing: 1950-04-14
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Granted: 1954-04-20
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Expires: 1970-04-14
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:29
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/03; B65G57/06; B65G57/035; B65G57/16; B65G57/20; B65G57/22; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/102; Y10S414/103; Y10S414/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE408998C
Cited
US1208802A
Cited
US1551890A
Cited
US1974165A
Cited
US2323174A
Cited
US2401592A
Cited
US2546501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |