US2628539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for recording and reproducing displacements
Assignee: Individual
•
Filing: 1945-01-04
•
Granted: 1953-02-17
•
Expires: 1965-01-04
Abstract
No abstract record available.
Inventors
- 👤 Neergaard Leif Eric De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:36
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/12; G05B19/42; G05B19/4202; G05B19/4207; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896; Y10T409/30112; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24562
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1172058A
Cited
US1343554A
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US1838389A
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US2092142A
Cited
US2154252A
Cited
US2283240A
Cited
US2336376A
Cited
US2302506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |