US2915918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic balancing mechanism for rotating elements
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1955-06-28
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Granted: 1959-12-08
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Expires: 1975-06-28
Abstract
No abstract record available.
Inventors
- 👤 George E Comstock
- 👤 Lennart A Kasparson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:33
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/04; B24B41/042; G; G01; G01M; G01M1/00; G01M1/30; G01M1/36; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/211; Y10T74/2114
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |