US3040710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Pan American Petroleum Corp
•
Filing: 1960-01-20
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Granted: 1962-06-26
•
Expires: 1980-01-20
Abstract
No abstract record available.
Inventors
- 👤 Lawrence B Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/10; F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K47/00; F16K47/01; F16K47/011; F16K47/0111; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1466450A
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US1890223A
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US1903232A
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US2092822A
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US2232018A
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US2677933A
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US2559012A
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US2713472A
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US2804281A
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US2865602A
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GB793925A
Cited
US2859733A
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US2947519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |