US3098329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement floor finishing machine
Assignee: Individual
•
Filing: 1959-08-19
•
Granted: 1963-07-23
•
Expires: 1979-08-19
Abstract
No abstract record available.
Inventors
- 👤 John T Doran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:32
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/18; B24B7/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN A FLOOR GRINDING MACHINE INCLUDING A DRIVEN ROTARY SHAFT AND AN ABRASIVE SUPPORTING DISC, A FLEXIBLE DRIVE COUPLING BETWEEN SAID SHAFT AND SAID DISC COMPRISING, A TUBULAR SLEEVE TELESCOPED OVER AND SECURED RIGIDLY TO SAID SHAFT, A PLATE CENTRALY TELESCOPED OVER AND SECURED RIGIDLY TO SAID SLEEVE, A SECOND PLATE LOOSELY TELESCOPED OVER SAID SLEEVE, RESILIENT COLLARS INTERPOSED BETWEEN SAID PLATES IN DIAMETRICALLY OPPOSED PAIRS, FASTENER ELEMENTS INTERCONNECTING SAID SPACED PLATES, AND SAID FASTENERS PROJECTING TO LOOSELY ENGAGE IN DEPRESSIONS IN SAID ABRASIVE SUPPORTING DISC.
Claim 2
Dependent Claim
86 words
IN A FLOOR GRINDING MACHINE INCLUDING A DRIVEN ROTARY SHAFT AND AN ABRASIVE SUPPORTING DISC, A FLEXIBLE DRIVE COUPLING BETWEEN SAID SHAFT AND SAID DISC COMPRISING, A TUBULAR SLEEVE TELESCOPED OVER AND SECURED RIGIDLY TO SAID SHAFT, A PLATE CENTRALY TELESCOPED OVER AND SECURED RIGIDLY TO SAID SLEEVE, A SECOND PLATE LOOSELY TELESCOPED OVER SAID SLEEVE, RESILIENT COLLARS INTERPOSED BETWEEN SAID PLATES IN DIAMETRICALLY OPPOSED PAIRS, FASTENER ELEMENTS INTERCONNECTING SAID SPACED PLATES, AND SAID FASTENERS PROJECTING TO LOOSELY ENGAGE IN DEPRESSIONS IN SAID ABRASIVE SUPPORTING DISC.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |