US2513112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data recording system employing record controlled apparatus
Assignee: Individual
•
Filing: 1944-07-19
•
Granted: 1950-06-27
•
Expires: 1964-07-19
Abstract
No abstract record available.
Inventors
- 👤 Shepherd Judson O'd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:04
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB264186A
Cited
GB329775A
Cited
US1927556A
Cited
US1962619A
Cited
US2165924A
Cited
US2165925A
Cited
US2268203A
Cited
US2112951A
Cited
US2246499A
Cited
US2258106A
Cited
US2204957A
Cited
US2253998A
Cited
US2297365A
Cited
US2247905A
Cited
US2402700A
Cited
US2386763A
Cited
US2466186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |