US2496323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buffer
Assignee: Individual
•
Filing: 1946-06-20
•
Granted: 1950-02-07
•
Expires: 1966-06-20
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Waltke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:06
CPC Classifications
F; F41; F41A; F41A3/00; F41A3/64; F41A3/78; F41A3/90; F41A3/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR752886A
Cited
US1037730A
Cited
US1297240A
Cited
US1749137A
Cited
US1680890A
Cited
US1772387A
Cited
US1955349A
Cited
US2089657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |