Patent US2646670A successfully refreshed from Google Patents.
US2646670A
Expired / Lapsed
US
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Closure for drinking receptacles
Assignee: Individual
•
Filing: 1951-01-15
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Granted: 1953-07-28
•
Expires: 1971-01-15
Abstract
No abstract record available.
Inventors
- 👤 John T Spalding
- 👤 Charles W Labitska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:34
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/22; A47G19/2205; A47G19/2266; A47G19/2272
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
GB189710153A
Cited
DE280581C
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US1773553A
Cited
US1610501A
Cited
US1725477A
Cited
US2003657A
Cited
US2093133A
Cited
US2107309A
Cited
US2447870A
Cited
US2573111A
Cited
US2487400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |