Patent US2175672A successfully refreshed from Google Patents.
US2175672A
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Preparation of seals between ceramic material and metal
Assignee: International Standard Electric Corp
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Filing: 1939-01-07
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Granted: 1939-10-10
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Expires: 1959-01-07
Abstract
No abstract record available.
Inventors
- 👤 Scott Thomas Robertson
- 👤 Pooley Leonard Arthur Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/028; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63404; C04B35/63408; C04B35/63432; H; H01; H01B; H01B17/00; H01B17/38; C04B2237/00; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/40; C04B2237/50; C04B2237/80; Y; Y10; Y10S; Y10S277/00; Y10S277/922; Y10S285/00; Y10S285/915; Y10T; Y10T403/00; Y10T403/21; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31667; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-10-09 | 1943-04-10 | 1943-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-09 | 1947-04-10 | 1947-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-09 | 1951-04-10 | 1951-10-10 | $7700.00 | Window Closed / Lapsed |