US3143512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition of barium sulphate to sealants used in faying surface type joints
Assignee: Individual
•
Filing: 1963-01-29
•
Granted: 1964-08-04
•
Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Paul C Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:09
CPC Classifications
C; C08; C08L; C08L81/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A COMPOSITION OF MATTER CONSISTING OF 0.1-25 PERCENT BY WEIGHT OF BARIUM SULPHATE, 5-20 PERCENT BY WEIGHT OF LEAD MONOXIDE AND BALANCE A POLYSULPHIDE POLYMER.
Claim 2
Dependent Claim
25 words
A COMPOSITION OF MATTER CONSISTING OF 0.1-25 PERCENT BY WEIGHT OF BARIUM SULPHATE, 5-20 PERCENT BY WEIGHT OF LEAD MONOXIDE AND BALANCE A POLYSULPHIDE POLYMER.
References Cited (Backward Citations)
US1580857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |