US2719947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording apparatus
Assignee: Taylor Taylor and Hobson Ltd
•
Filing: 1950-02-06
•
Granted: 1955-10-04
•
Expires: 1970-02-06
Abstract
No abstract record available.
Inventors
- 👤 Reason Richard Edmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:29
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316657A
Cited
US1089744A
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US1880008A
Cited
US1886844A
Cited
US2077242A
Cited
US2059879A
Cited
US2412639A
Cited
GB612619A
Cited
GB613102A
Cited
US2524564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |