Patent US3068003A successfully refreshed from Google Patents.
US3068003A
Expired / Lapsed
US
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Exerciser
Assignee: PORTMAN
•
Filing: 1961-05-11
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Granted: 1962-12-11
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Expires: 1981-05-11
Abstract
No abstract record available.
Inventors
- 👤 Merrill A Portman
- 👤 Harry J Balne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:22
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/12; A63B21/00; A63B21/002; A63B21/0023; A63B21/40; A63B21/4027; A63B21/4033; A63B21/4034; A63B21/4035; A63B23/03516; A63B23/03525; A63B23/1209; A63B2208/00; A63B2208/02; A63B2208/0204
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |