US3530949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic weight totalizing apparatus with electric re-balancing
Assignee: REVERE Corp OF AMERICA A CORP OF NJ
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Filing: 1969-04-14
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Granted: 1970-09-29
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Expires: 1989-04-14
Abstract
No abstract record available.
Inventors
- 👤 Burt L Swersey
- 👤 Peter I Fried
- 👤 Ruth Harlam
- 👤 Irwin Math
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:58
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/44; G01G19/445; G01G5/00; G01G5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB531792A
Cited
US2457655A
Cited
US2430702A
Cited
GB640912A
Cited
US2667702A
Cited
GB996573A
Cited
US3338323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |