US3435185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding vacuum seal for electron beam welder
Assignee: Rohr Inc
•
Filing: 1966-01-11
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Granted: 1969-03-25
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Expires: 1986-01-11
Abstract
No abstract record available.
Inventors
- 👤 Milan E Gerard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:04
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/18; B; B23; B23K; B23K15/00; B23K15/06
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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |