US3453950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press
Assignee: J DIEFFENBACHER GmbH
•
Filing: 1966-07-25
•
Granted: 1969-07-08
•
Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Pfeiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:55
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/06; B30B15/062; B30B15/064; B29; B29C; B29C33/00; B29C33/02; B29C33/04; B29C43/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA489566A
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US2090377A
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US2300339A
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US2627290A
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US2874751A
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US3241189A
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US3236176A
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US3333447A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |