US2856250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pistons and piston rods
Assignee: Individual
•
Filing: 1957-02-13
•
Granted: 1958-10-14
•
Expires: 1977-02-13
Abstract
No abstract record available.
Inventors
- 👤 Thoma Hans Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:13
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0685; F16C11/069; F01; F01B; F01B3/00; F01B3/0082; F01B3/0085; F16J; F16J1/00; F16J1/10; F16J1/14; F16J1/22; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32811
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |