US3501776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electropneumatic converter for operating an artificial limb
Assignee: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
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Filing: 1967-08-07
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Granted: 1970-03-24
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Expires: 1987-08-07
Abstract
No abstract record available.
Inventors
- 👤 Theodorus Willem Beeker
- 👤 Adriaan Den Hertog
- 👤 Johannes During
- 👤 Theodorus Cornelis Miltenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:35
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/54; A61F2/58; A61F2/68; A61F2/70; A61F2/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1490202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |