US3033245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tar pump system
Assignee: Aeroil Products Co Inc
•
Filing: 1959-05-14
•
Granted: 1962-05-08
•
Expires: 1979-05-14
Abstract
No abstract record available.
Inventors
- 👤 Robert E Schreter
- 👤 Alexander J Turpin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:57
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/16; E01C19/17; E01C19/174; E04; E04D; E04D15/00; E04D15/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1832620A
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US1987766A
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US1947088A
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US2239207A
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US2522652A
Cited
US2434771A
Cited
US2650003A
Cited
US2717106A
Cited
US2787403A
Cited
US2843048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |