US3409549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and articles including non-pyrophoric microparticles
Assignee: MICHAEL WALTER FREEMAN
•
Filing: 1965-10-22
•
Granted: 1968-11-05
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Freeman Michael Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:30
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/668; B; B22; B22F; B22F9/00; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04; H01F1/06; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN ANTIFRICTION BEARING HAVING A BEARING SURFACE CONSISTING ESSENTIALLY OF A THERMALLY SET SYNTHETIC RESIN OF PHENOL FORMALDEHYDE OR MELAMINE RESINS AND DISPERSED THEREIN A TRANSITION ELEMENT BEARING MEATAL OF RHOMBIC DODECAHEDRAL MICROPARICLE FROM ABOUT 0.01 TO 3 MICRONS IN PARTICLE SIZE AND IN AMOUNT OF FROM ABOUT 5 TO 50% BY WEIGHT OF THE COMPOSITON, THE COMPOSTION BEING INHERENTLY NON-PYROPHORIC, THE METAL HAVING BEEN PYROPHORIC WHEN PRODUCED.
Claim 2
Dependent Claim
68 words
AN ANTIFRICTION BEARING HAVING A BEARING SURFACE CONSISTING ESSENTIALLY OF A THERMALLY SET SYNTHETIC RESIN OF PHENOL FORMALDEHYDE OR MELAMINE RESINS AND DISPERSED THEREIN A TRANSITION ELEMENT BEARING MEATAL OF RHOMBIC DODECAHEDRAL MICROPARICLE FROM ABOUT 0.01 TO 3 MICRONS IN PARTICLE SIZE AND IN AMOUNT OF FROM ABOUT 5 TO 50% BY WEIGHT OF THE COMPOSITON, THE COMPOSTION BEING INHERENTLY NON-PYROPHORIC, THE METAL HAVING BEEN PYROPHORIC WHEN PRODUCED.
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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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |