US2703491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strain measuring instrument
Assignee: Phillips Petroleum Co
•
Filing: 1949-10-21
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Granted: 1955-03-08
•
Expires: 1969-10-21
Abstract
No abstract record available.
Inventors
- 👤 Louis P Goetz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:02
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/225; E; E21; E21B; E21B47/00; E21B47/06; G01L9/00; G01L9/0041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2008857A
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US2094207A
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US2276843A
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US2392293A
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US2360886A
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US2346838A
Cited
US2483300A
Cited
US2466034A
Cited
US2509621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-07 | 1958-09-06 | 1959-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-07 | 1962-09-06 | 1963-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-07 | 1966-09-06 | 1967-03-08 | $7700.00 | Window Closed / Lapsed |