Patent US1939756A successfully refreshed from Google Patents.
US1472912A
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Die head
Assignee: ROBERT L ELLERY
•
Filing: 1921-01-29
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Granted: 1923-11-06
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Expires: 1941-01-29
Abstract
No abstract record available.
Inventors
- 👤 Jobst Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:25
CPC Classifications
B; B23; B23G; B23G5/00; B23G5/08; B23G5/10; B23G5/12; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/852; Y10T408/853; Y10T408/858; Y10T408/8588; Y10T408/85896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-11-05 | 1927-05-07 | 1927-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-11-05 | 1931-05-07 | 1931-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-11-05 | 1935-05-07 | 1935-11-06 | $7700.00 | Window Closed / Lapsed |