US2581218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking mechanism for register apparatus
Assignee: GERARD V SMITH
•
Filing: 1946-12-20
•
Granted: 1952-01-01
•
Expires: 1966-12-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:24
CPC Classifications
H; H03; H03K; H03K21/00; H03K21/02; 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)
US1378950A
Cited
US1773392A
Cited
US2293127A
Cited
US2192621A
Cited
US2231365A
Cited
US2289513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |