Patent US3389795A successfully refreshed from Google Patents.
US3389795A
Expired / Lapsed
US
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Gas pressure tankage press
Assignee: G A WINTZER AND SON CO
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Filing: 1965-10-08
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Granted: 1968-06-25
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Expires: 1985-10-08
Abstract
No abstract record available.
Inventors
- 👤 Frederick S Wintzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:26
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/06; A; A23; A23K; A23K10/00; A23K10/20; A23K10/26; B; B30; B30B; B30B9/00; B30B9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US576314A
Cited
US603548A
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US751810A
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US1155473A
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US1772262A
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US2055697A
Cited
US2040394A
Cited
US3116682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |