US2137365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitrogenous fertilizer base and process for producing the same
Assignee: WILLIAM J GASCOYNE JR
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Filing: 1937-02-01
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Granted: 1938-11-22
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Expires: 1957-02-01
Abstract
No abstract record available.
Inventors
- 👤 Strong Stanley
- 👤 Jr William J Gascoyne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:04
CPC Classifications
C; C05; C05F; C05F1/00; C05F1/005; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y10; Y10S; Y10S426/00; Y10S426/807; Y10S530/00; Y10S530/855
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) | 1941-11-21 | 1942-05-23 | 1942-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-21 | 1946-05-23 | 1946-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-21 | 1950-05-23 | 1950-11-22 | $7700.00 | Window Closed / Lapsed |