US2772180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parting compositions in metal manufacturing
Assignee: Olin Corp
•
Filing: 1952-06-28
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Granted: 1956-11-27
•
Expires: 1972-06-28
Abstract
No abstract record available.
Inventors
- 👤 Neel Robert Milton
- 👤 Oliver L Niehouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:14
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/224; B21; B21C; B21C37/00; B21C37/06; B21C37/14; Y; Y10; Y10T; Y10T29/00; Y10T29/30; Y10T29/301; Y10T29/303; Y10T29/305; Y10T29/49; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AS A NEW COMPOSITION OF MATTER, A PARTING MATERIAL SUITABLE FOR SANDWICHING BETWEEN FACE TO FACE SURFACES OF SUPERPOSED PRESSURE WELDABLE METAL SHEETS FOR PREVENTING WELDING OF THE SHEETS IN THOSE AREAS SEPARATED THEREBY DURING PRESSURE WELDING, THE SOLID CONSTITUENTS OF WHICH CONSIST ESSENTIALLY OF PARTICLES OF COLLOIDAL GRAPHITE AND PARTICLES OF CALCIUM CARBONATE IN THE RATIO OF FROM ABOUT 5 TO ABOUT 13 PARTS TO FROM ABOUT 40 TO ABOUT 75 PARTS RESPECTIVELY.
Claim 2
Dependent Claim
74 words
AS A NEW COMPOSITION OF MATTER, A PARTING MATERIAL SUITABLE FOR SANDWICHING BETWEEN FACE TO FACE SURFACES OF SUPERPOSED PRESSURE WELDABLE METAL SHEETS FOR PREVENTING WELDING OF THE SHEETS IN THOSE AREAS SEPARATED THEREBY DURING PRESSURE WELDING, THE SOLID CONSTITUENTS OF WHICH CONSIST ESSENTIALLY OF PARTICLES OF COLLOIDAL GRAPHITE AND PARTICLES OF CALCIUM CARBONATE IN THE RATIO OF FROM ABOUT 5 TO ABOUT 13 PARTS TO FROM ABOUT 40 TO ABOUT 75 PARTS RESPECTIVELY.
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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) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |