Patent US3028108A successfully refreshed from Google Patents.
Patent US1999727A successfully refreshed from Google Patents.
US1999727A
Expired / Lapsed
US
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Calculating machine
Assignee: Individual
•
Filing: 1930-06-16
•
Granted: 1935-04-30
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Expires: 1950-06-16
Abstract
No abstract record available.
Inventors
- 👤 William S Gubelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:29
CPC Classifications
G; G06; G06C; G06C7/00; G06C7/02; G06C7/06; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929
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) | 1938-04-29 | 1938-10-29 | 1939-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-29 | 1942-10-29 | 1943-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-29 | 1946-10-29 | 1947-04-30 | $7700.00 | Window Closed / Lapsed |