Patent US2637644A successfully refreshed from Google Patents.
US2637644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant growth regulation
Assignee: Sharples Chemicals Inc
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Filing: 1951-10-31
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Granted: 1953-05-05
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Expires: 1971-10-31
Abstract
No abstract record available.
Inventors
- 👤 Tischler Nathaniel
- 👤 Ernest P Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:25
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
36 words
A COMPOSITION PREPARED FOR USE AS A PLANT RESPONSE AGENT WHICH COMPRISES A CARRIER, AND AT LEAST ONE COMPOUND WHICH WHEN IN THE PRESENCE OF WATER YIELD ANIONS OF EXO-CIS CONFIGURATION AND CONFORMING TO THE STRUCTURE
References Cited (Backward Citations)
US2524145A
Cited
US2556665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |