Patent US2789875A successfully refreshed from Google Patents.
US2789875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating and supporting device
Assignee: AC Weber and Co Inc
•
Filing: 1955-04-05
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Granted: 1957-04-23
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Expires: 1975-04-05
Abstract
No abstract record available.
Inventors
- 👤 Jay H Van Ordt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:02
CPC Classifications
D; D05; D05B; D05B75/00; D05B75/06; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US180644A
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US541474A
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US1598551A
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US1769964A
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US2026454A
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US2297960A
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US2487803A
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US2713820A
Cited
US2620867A
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US2688480A
Cited
US2700585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |