US2559980A
Expired / Lapsed
US
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Assignee: ROANE M LACY
•
Filing: 1949-04-16
•
Granted: 1951-07-10
•
Expires: 1969-04-16
Abstract
No abstract record available.
Inventors
- 👤 Clyde M Mcallister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:08
CPC Classifications
F; F04; F04B; F04B15/00; F04B15/04; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US126643A
Cited
US2000262A
Cited
US2043059A
Cited
US2101084A
Cited
US2506738A
Cited
US2448379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |