US1697260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for recovering oil
Assignee: Individual
•
Filing: 1927-03-07
•
Granted: 1929-01-01
•
Expires: 1947-03-07
Abstract
No abstract record available.
Inventors
- 👤 Bruce M Cloud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:59
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; E; E21; E21B; E21B43/00; E21B43/16; E21B43/166; E21B43/168; E21B43/18; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-01-01 | 1932-07-02 | 1933-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-01-01 | 1936-07-02 | 1937-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-01-01 | 1940-07-02 | 1941-01-01 | $7700.00 | Window Closed / Lapsed |