US3438582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tanks for holding liquids
Assignee: CHARLES S PETRIE
•
Filing: 1966-12-06
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Granted: 1969-04-15
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Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Norman R Robinson
- 👤 Donald M Anley
- 👤 Charles S Petrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:34
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B64; B64D; B64D37/00; B64D37/02; B64D37/14; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3009; Y10T137/3115; Y10T137/3127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |