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Patent US3413841A successfully refreshed from Google Patents.
US3413841A
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US
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Leak testing method and apparatus for containers
Assignee: Elcalor Ag
•
Filing: 1966-10-10
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Granted: 1968-12-03
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Weber Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:58
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/32; G01M3/34; B; B07; B07C; B07C5/00; B07C5/34; B07C5/3404; G01M3/3218; G01M3/3281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US700891A
Cited
US1754321A
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US2106407A
Cited
US2084653A
Cited
SU117156A1
Cited
US2880610A
Cited
US3318137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |