Patent US2760668A successfully refreshed from Google Patents.
US2760668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum bottle holders
Assignee: Individual
•
Filing: 1952-05-12
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Granted: 1956-08-28
•
Expires: 1972-05-12
Abstract
No abstract record available.
Inventors
- 👤 Donald F Wiederspan
- 👤 William R Mohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:34
CPC Classifications
A; A47; A47G; A47G23/00; A47G23/02; A47G23/0241
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1029414A
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US1079192A
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US1163044A
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US1430525A
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US1913587A
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US2081292A
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US2099629A
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US2201257A
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US2215411A
Cited
US2281135A
Cited
US2419769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |