Patent US2507939A successfully refreshed from Google Patents.
US2507939A
Expired / Lapsed
US
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Portable collapsible water tank
Assignee: Individual
•
Filing: 1947-08-05
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Granted: 1950-05-16
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Expires: 1967-08-05
Abstract
No abstract record available.
Inventors
- 👤 Franklin E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:09
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; A; A62; A62C; A62C8/00; A62C8/005; Y; Y10; Y10S; Y10S383/00; Y10S383/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US446518A
Cited
US500773A
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US1580705A
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US1999424A
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US2006673A
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US2326263A
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US2378159A
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US2426195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |