US2735558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
chesher
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:53
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/44; B60P1/4414; B60P1/4421; B65; B65G; B65G67/00; B65G2814/00; B65G2814/03; B65G2814/0301; B65G2814/0311; B65G2814/0313
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR636318A
Cited
US840877A
Cited
US1835850A
Cited
GB322364A
Cited
US1956650A
Cited
US2232514A
Cited
US2354899A
Cited
US2386519A
Cited
GB613653A
Cited
US2500459A
Cited
US2670861A
Cited
US2560131A
Cited
US2703656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |