US2743829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ballard
Assignee: —
•
Filing: —
•
Granted: 1956-05-01
•
Expires: 1973-05-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:00
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/18; B65G19/20; E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US527723A
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US536813A
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US597096A
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US712020A
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US886263A
Cited
US1547276A
Cited
US2109123A
Cited
US2227557A
Cited
US2264332A
Cited
US2381892A
Cited
US2461150A
Cited
US2534679A
Cited
US2627756A
Cited
US2538242A
Cited
US2704150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |