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US2660872A
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Assignee: Individual
•
Filing: 1950-06-03
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Granted: 1953-12-01
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Expires: 1970-06-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:46
CPC Classifications
E; E05; E05B; E05B67/00; E05B67/36; Y; Y10; Y10T; Y10T70/00; Y10T70/30; Y10T70/333; Y10T70/40; Y10T70/413; Y10T70/437; Y10T70/439; Y10T70/50; Y10T70/5611; Y10T70/5854; Y10T70/5867
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |