Patent US3053475A successfully refreshed from Google Patents.
US3053475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tube plant
Assignee: Individual
•
Filing: 1958-10-27
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Granted: 1962-09-11
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Expires: 1978-10-27
Abstract
No abstract record available.
Inventors
- 👤 Tonne Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:24
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/04; B65G51/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US523456A
Cited
US617417A
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US623969A
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US1107547A
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US1660293A
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US1769677A
Cited
US2034918A
Cited
US2698721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |