Patent US3445121A successfully refreshed from Google Patents.
US3445121A
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US
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Assignee: ROBERT L LINEKER
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Filing: 1967-02-09
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Granted: 1969-05-20
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Expires: 1987-02-09
Abstract
No abstract record available.
Inventors
- 👤 Robert L Lineker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:10
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB545437A
Cited
US2768012A
Cited
US2897533A
Cited
US2958551A
Cited
US3027167A
Cited
FR1339675A
Cited
US3194571A
Cited
US3183009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |