Patent US3209735A successfully refreshed from Google Patents.
US3209735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston and cylinder construction for internal combustion engines
Assignee: ZF International UK Ltd
•
Filing: 1963-06-06
•
Granted: 1965-10-05
•
Expires: 1983-06-06
Abstract
No abstract record available.
Inventors
- 👤 Clarke John Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:27
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/24; F02B; F02B23/00; F02B23/02; F02B23/06; F02B23/0645; F02B23/0648; F02B23/0651; F02B23/0672; F02B23/0678; F02B31/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B2275/00; F02B2275/14; F02B23/0618; F02B23/0621; F02B3/00; F02B3/06; F02F1/00; F02F1/24; F02F2001/244; F02F2001/247; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |