US3435915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting installation
Assignee: Individual
•
Filing: 1967-01-31
•
Granted: 1969-04-01
•
Expires: 1987-01-31
Abstract
No abstract record available.
Inventors
- 👤 Julio Villars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:06
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/02; B66F7/025; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1352172A
Cited
US1505220A
Cited
US2483828A
Cited
GB724512A
Cited
DE1123451B
Cited
FR1303096A
Cited
US3291260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |