US2563440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thickness gauge
Assignee: —
•
Filing: —
•
Granted: 1951-08-07
•
Expires: 1968-08-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:32
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/02; G01B5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US455644A
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US517073A
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US846607A
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CH116377A
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FR738779A
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CH216190A
Cited
US2293411A
Cited
US2295783A
Cited
US2311323A
Cited
GB556532A
Cited
US2470498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |