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US3517774A
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Tower elevator
Assignee: ROY E MEYER
•
Filing: 1968-01-17
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Granted: 1970-06-30
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Expires: 1988-01-17
Abstract
No abstract record available.
Inventors
- 👤 Roy E Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:28
CPC Classifications
B; B66; B66B; B66B7/00; B66B7/02; B66B7/022; B66B7/04; B66B7/046; B66B9/00; B66B9/16; B66B9/187; Y; Y10; Y10S; Y10S187/00; Y10S187/90
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) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |