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US2688916A
Expired / Lapsed
US
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Statistical machine
Assignee: Powers Samas Accounting Machines Ltd
•
Filing: 1951-10-17
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Granted: 1954-09-14
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Expires: 1971-10-17
Abstract
No abstract record available.
Inventors
- 👤 Baldwin Richard Everest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:39
CPC Classifications
A; A61; A61M; A61M1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1882766A
Cited
US1909550A
Cited
US2027916A
Cited
US2034112A
Cited
US2181996A
Cited
US2399724A
Cited
US2438071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |