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Patent US2808973A successfully refreshed from Google Patents.
US2808973A
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Assignee: Individual
•
Filing: 1954-08-20
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Granted: 1957-10-08
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Expires: 1974-08-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Gobble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:35
CPC Classifications
A; A45; A45F; A45F3/00; A45F3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH23498A
Cited
GB191500627A
Cited
CH114197A
Cited
US1631694A
Cited
US2485720A
Cited
US2505272A
Cited
US2633573A
Cited
US2608326A
Cited
US2654887A
Cited
US2676737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |