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US2968804A
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US
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Assignee: Individual
•
Filing: 1957-03-19
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Granted: 1961-01-17
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Expires: 1977-03-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Buffington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:28
CPC Classifications
A; A47; A47G; A47G29/00; A47G29/12; A47G29/122; A47G29/1225; A47G2029/1226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1167045A
Cited
US1256740A
Cited
US1342468A
Cited
US2118836A
Cited
US2212211A
Cited
US2763853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |