US2621777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable elevator support
Assignee: Individual
•
Filing: 1946-05-24
•
Granted: 1952-12-16
•
Expires: 1966-05-24
Abstract
No abstract record available.
Inventors
- 👤 Hubert A Tintes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:22
CPC Classifications
B; B65; B65G; B65G41/00; B65G41/001; B65G41/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US326801A
Cited
US676504A
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US1750855A
Cited
DE513450C
Cited
US2438527A
Cited
US2403636A
Cited
US2391053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |