US2840384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Geerpres Wringer Inc
•
Filing: 1956-01-23
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Granted: 1958-06-24
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Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Bard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:46
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/02; B62B2202/00; B62B2202/02; B62B2202/028; B62B2202/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189916949A
Cited
US1249489A
Cited
US1819601A
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US2204691A
Cited
US2622922A
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US2611149A
Cited
US2727753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |