US3994539B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US3994539B1 - - Google Patents
Assignee: ROBOMATION CORP
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Filing: 1975-07-22
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Granted: 1987-02-10
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Expires: 1995-07-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:06
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/149; F15B15/1414; F15B15/1423; F15B15/1433; F15B15/20; F15B15/24; F16; F16K; F16K15/00; F16K15/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |