Patent US3445015A successfully refreshed from Google Patents.
US3445015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ram-actuated telescoping hollow arm
Assignee: ROBERT A SAMPO
•
Filing: 1966-12-09
•
Granted: 1969-05-20
•
Expires: 1986-12-09
Abstract
No abstract record available.
Inventors
- 👤 Robert A Sampo
- 👤 Tony A Sampo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:34
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/306
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2411498A
Cited
US2746612A
Cited
US2791341A
Cited
US3184085A
Cited
US3140785A
Cited
US3292800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |