US2924966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipeline surveying
Assignee: Gulf Research and Development Co
•
Filing: 1956-06-28
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Granted: 1960-02-16
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Expires: 1976-06-28
Abstract
No abstract record available.
Inventors
- 👤 Dean Howard J En
- 👤 Jones John Delbert
- 👤 Jr Edward Topanelian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:25
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/005; G01M3/02; G01M3/04; G01M3/20; G01M3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |