US2854049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible storage tanks
Assignee: ELLIOT EQUIPMENT Ltd
•
Filing: 1956-12-11
•
Granted: 1958-09-30
•
Expires: 1976-12-11
Abstract
No abstract record available.
Inventors
- 👤 Wyllie Stuart Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:03
CPC Classifications
A; A62; A62C; A62C35/00; A62C35/02; A62C2/00; A62C2/06; Y; Y10; Y10S; Y10S206/00; Y10S206/822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US755747A
Cited
US2529872A
Cited
US2580879A
Cited
US2674287A
Cited
US2751953A
Cited
US2739410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |