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US1773392A
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Calculating machine for all species
Assignee: Rheinische Metallwaaren and Maschinenfabrik AG
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Filing: 1927-07-21
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Granted: 1930-08-19
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Expires: 1947-07-21
Abstract
No abstract record available.
Inventors
- 👤 Eichenauer Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:47
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/40; B; B41; B41J; B41J5/00; B41J5/08; B41J5/14; G06C; G06C25/00; G06C27/00; G06C7/00; G06C7/02; G06C9/00; G06F3/00; G06F3/09; H; H04; H04L; H04L17/00; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238; Y10T74/20244
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) | 1933-08-18 | 1934-02-17 | 1934-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-08-18 | 1938-02-17 | 1938-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-08-18 | 1942-02-17 | 1942-08-19 | $7700.00 | Window Closed / Lapsed |