US3273984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheel
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1963-07-18
•
Granted: 1966-09-20
•
Expires: 1983-07-18
Abstract
No abstract record available.
Inventors
- 👤 Roy S Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:09
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A GRINDING WHEEL OF ORGANIC RESIN BONDED ABRASIVE GRAINS CONSISTING OF BETWEEN 30 AND 50% BY VOLUME OF ABRASIVE, MORE THAN 20% BUT NOT MORE THAN 68% PORES AND AT LEAST 2% BOND, SAID BOND CONSISTING OF A PRINCIPAL BOND WHICH IS ESSENTIALLY A SHELLAC BOND CONTAINING A MINOR AMOUNT OF PHENOL FORMALDEHYDE RESIN, AND A STABILIZER BOND IN THE AMOUNT OF 10 TO 20% BY WEIGHT OF SAID PRINCIPAL BOND SELECTED FROM THE GROUP CONSISTING OF DIGLYCIDYL ETHER EPOXY, RESINS, EXPOXYLATED NOVOLAC RESINS, AND UNSATURATED POLYESTER RESINS.
Claim 2
Dependent Claim
88 words
A GRINDING WHEEL OF ORGANIC RESIN BONDED ABRASIVE GRAINS CONSISTING OF BETWEEN 30 AND 50% BY VOLUME OF ABRASIVE, MORE THAN 20% BUT NOT MORE THAN 68% PORES AND AT LEAST 2% BOND, SAID BOND CONSISTING OF A PRINCIPAL BOND WHICH IS ESSENTIALLY A SHELLAC BOND CONTAINING A MINOR AMOUNT OF PHENOL FORMALDEHYDE RESIN, AND A STABILIZER BOND IN THE AMOUNT OF 10 TO 20% BY WEIGHT OF SAID PRINCIPAL BOND SELECTED FROM THE GROUP CONSISTING OF DIGLYCIDYL ETHER EPOXY, RESINS, EXPOXYLATED NOVOLAC RESINS, AND UNSATURATED POLYESTER RESINS.
References Cited (Backward Citations)
US2521911A
Cited
US2709647A
Cited
GB787022A
Cited
US2703765A
Cited
US2779668A
Cited
US2793105A
Cited
US2811430A
Cited
US2825638A
Cited
US2939777A
Cited
US3102010A
Cited
US2907740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |