US3366409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic-to-metal seal
Assignee: US Philips Corp
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Filing: 1965-06-10
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Granted: 1968-01-30
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Expires: 1985-06-10
Abstract
No abstract record available.
Inventors
- 👤 Milch Alfred
- 👤 Joseph J Lalak
- 👤 Richard H Ahlert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:31
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/636; C04B35/6365; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/068; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/343; C04B2237/40; C04B2237/403; C04B2237/50; C04B2237/59; C04B2237/592; C04B2237/70; C04B2237/704; C04B2237/706; C04B2237/76; C04B2237/765; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/936; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12618; Y10T428/12639; Y10T428/12771; Y10T428/12778; Y10T428/12806; Y10T428/12826; Y10T428/12833; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/24997; Y10T428/249994; Y10T428/249999
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |