Patent US2944678A successfully refreshed from Google Patents.
US2944678A
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Assignee: Individual
•
Filing: 1955-09-06
•
Granted: 1960-07-12
•
Expires: 1975-09-06
Abstract
No abstract record available.
Inventors
- 👤 Grantham Barfield Fredrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:26
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/10; A47F5/105; Y; Y10; Y10T; Y10T403/00; Y10T403/45
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |