Patent US2729892A successfully refreshed from Google Patents.
US2729892A
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Multi-ratio engraving machine and workholder therefor
Assignee: NEW HERMES ENGRAVING MACHINE CORP
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Filing: 1950-11-04
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Granted: 1956-01-10
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Expires: 1970-11-04
Abstract
No abstract record available.
Inventors
- 👤 Gerhard G Gruettner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:01
CPC Classifications
B; B44; B44B; B44B3/00; B44B3/04; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/20; B44B3/001; B44B3/002; B44B3/06; B44B3/065; B44B3/066; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232; Y10T409/301568; Y10T409/306216
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |