Patent US2669176A successfully refreshed from Google Patents.
US2669176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pump for food containers
Assignee: Individual
•
Filing: 1951-06-22
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Granted: 1954-02-16
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Expires: 1971-06-22
Abstract
No abstract record available.
Inventors
- 👤 Vernon B Lazerus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:40
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/04; B65B31/046; B65B31/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US168888A
Cited
US328673A
Cited
US716090A
Cited
US865022A
Cited
US1635815A
Cited
US2055390A
Cited
US2036007A
Cited
FR886540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |