US2821554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methane sulfenyl bromides
Assignee: California Spray Chemical Corp
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Filing: 1955-08-30
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Granted: 1958-01-28
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Expires: 1975-08-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph N Ospenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:29
CPC Classifications
C; C07; C07C; C07C313/00; C07C313/08; A; A01; A01N; A01N47/00; A01N47/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US2520400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |