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US2601893A
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US
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Assignee: Individual
•
Filing: 1949-08-26
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Granted: 1952-07-01
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Expires: 1969-08-26
Abstract
No abstract record available.
Inventors
- 👤 Fred W Funke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:45
CPC Classifications
F; F41; F41H; F41H9/00; F41H9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191507524A
Cited
GB191518119A
Cited
US1340012A
Cited
US1502104A
Cited
GB373218A
Cited
AU2059234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |