US3470628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instruction device
Assignee: FRANK J SCHUHE
•
Filing: 1967-07-24
•
Granted: 1969-10-07
•
Expires: 1987-07-24
Abstract
No abstract record available.
Inventors
- 👤 Frank J Schuhe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:15
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/06; G09B1/00; G09B1/02; G09B1/16; G09B1/24; G09B19/00; G09B19/0015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1375490A
Cited
US2837962A
Cited
US2813457A
Cited
US2837837A
Cited
US2871580A
Cited
US3147557A
Cited
US3246402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |