US2713971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counting devices
Assignee: English Numbering Machines Ltd
•
Filing: 1951-09-14
•
Granted: 1955-07-26
•
Expires: 1971-09-14
Abstract
No abstract record available.
Inventors
- 👤 Bud Hans
- 👤 Greenhow Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:52
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/04; G06M1/06; G06M1/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US81952A
Cited
US1508121A
Cited
US1506461A
Cited
US1831903A
Cited
US1942794A
Cited
US2019125A
Cited
US2354708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |