US2540320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1949-03-22
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Granted: 1951-02-06
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Expires: 1969-03-22
Abstract
No abstract record available.
Inventors
- 👤 Edward L Cayo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:31
CPC Classifications
B; B43; B43L; B43L23/00; B43L23/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US479303A
Cited
US492336A
Cited
US510518A
Cited
FR745309A
Cited
US1770062A
Cited
US2146288A
Cited
US2188130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |