Patent US3420173A successfully refreshed from Google Patents.
US3420173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axially expandable and contractable container
Assignee: Zeneca Inc
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Filing: 1967-03-31
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Granted: 1969-01-07
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Expires: 1987-03-31
Abstract
No abstract record available.
Inventors
- 👤 Frank E Slawinski
- 👤 Herbert H Whetstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:16
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US167465A
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US542041A
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CA575288A
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US1220208A
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US1543850A
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US1988091A
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US2685316A
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US2887953A
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US3185092A
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US3332349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |