Patent US2869328A successfully refreshed from Google Patents.
US2869328A
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Method and apparatus for operating underground storage caverns
Assignee: Texaco Inc
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Filing: 1953-10-12
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Granted: 1959-01-20
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Expires: 1973-10-12
Abstract
No abstract record available.
Inventors
- 👤 Robert M Gibson
- 👤 Brink Karl C Ten
- 👤 Austen M Shook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:13
CPC Classifications
B; B65; B65G; B65G5/00; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US691975A
Cited
US1449754A
Cited
US1636455A
Cited
US2361231A
Cited
US2590066A
Cited
US2747774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |