US2736223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seybold
Assignee: —
•
Filing: —
•
Granted: 1956-02-28
•
Expires: 1973-02-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:59
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/32; G10H2230/00; G10H2230/045; G10H2230/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1008722A
Cited
US1882960A
Cited
US1956350A
Cited
US2233948A
Cited
US2226900A
Cited
US2262179A
Cited
US2288463A
Cited
US2250065A
Cited
US2356368A
Cited
US2439551A
Cited
US2487420A
Cited
US2577288A
Cited
US2575142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |