US2731887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
sjostrand
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:26
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/30; Y; Y10; Y10S; Y10S29/00; Y10S29/901; Y10S82/00; Y10S82/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49758; Y10T408/00; Y10T408/05; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/303864; Y10T409/305992; Y10T82/00; Y10T82/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US728315A
Cited
US2171927A
Cited
US2346975A
Cited
US2382665A
Cited
US2432659A
Cited
US2449429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |