US3421367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression testing method and apparatus
Assignee: Mobil Oil AS
•
Filing: 1966-07-05
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Granted: 1969-01-14
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Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 William G Mears
- 👤 Karl R Schmidt
- 👤 Herman J Vander Straeten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:36
CPC Classifications
F; F02; F02P; F02P17/00; G; G01; G01L; G01L23/00; G01L23/08; G01L23/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3186218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |