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US2848077A
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Elevator guide rail fastener
Assignee: Otis Elevator Co
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Filing: 1956-01-24
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Granted: 1958-08-19
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Expires: 1976-01-24
Abstract
No abstract record available.
Inventors
- 👤 Tofanelli Daniel Dario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:38
CPC Classifications
B; B66; B66B; B66B7/00; B66B7/02; B66B7/023; B66B7/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |