Patent US2812055A successfully refreshed from Google Patents.
US2812055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barn cleaning apparatus
Assignee: Individual
•
Filing: 1954-09-30
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Granted: 1957-11-05
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Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 Harvey M Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:21
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/01; A01K1/0132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1952690A
Cited
US2446611A
Cited
FR992359A
Cited
GB640642A
Cited
US2593340A
Cited
US2675121A
Cited
US2698517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |