US3043348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for introducing liquid into and removing from a pneumatic tube
Assignee: Individual
•
Filing: 1958-09-22
•
Granted: 1962-07-10
•
Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Wellsch Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:41
CPC Classifications
B; B60; B60C; B60C29/00; B60C29/06; B60C29/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US840469A
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US2320042A
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US2339381A
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US2347267A
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US2415019A
Cited
US2419146A
Cited
US2488946A
Cited
US2652181A
Cited
US2656083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |