Patent US2821385A successfully refreshed from Google Patents.
US2821385A
Expired / Lapsed
US
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Belt making machine
Assignee: Individual
•
Filing: 1952-10-01
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Granted: 1958-01-28
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Expires: 1972-10-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Hoffee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:32
CPC Classifications
D; D05; D05B; D05B35/00; D05B35/06; D05B35/066; D05B35/068; D05D; D05D2303/00; D05D2303/20; D05D2305/00; D05D2305/02; D05D2305/04; D05D2305/06; D05D2305/08; D05D2305/12; Y; Y10; Y10S; Y10S493/00; Y10S493/937; Y10S493/938
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1944507A
Cited
US2040730A
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US1277004A
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US1712305A
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US1958305A
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US2071123A
Cited
US2144084A
Cited
US2204189A
Cited
US2680612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |