§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US4048156A Expired / Lapsed US ⏱️ 0.0 years remaining

Carbamoylphosphonates

Assignee: EIDP Inc
•
Filing: 1976-09-14
•
Granted: 1977-09-13
•
Expires: 1996-09-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract This disclosure teaches a method for employing novel carbamoylphosphonates such as ammonium ethyl carbamoylphosphonate, ammonium isopropyl carbamoylphosphonate and ammonium allyl carbamoylphosphonate to regulate the growth rate of plants. SP CROSS REFERENCE TO RELATED APPLICATIONS This application is a division of application Ser. No. 553,423, filed Feb. 26, 1975, now U.S. Pat. No. 3,997,544, which is a division of application Ser. No. 283,769, filed Aug. 25, 1972, now U.S. Pat. No. 3,846,512, which is a continuation-in-part of application Ser. No. 85,221, filed Oct. 29, 1970, now U.S. Pat. No. 3,819,353, which is a continuation-in-part of my application Ser. No. 803,962, filed Mar. 3, 1969, now abandoned, which was in turn a continuation-in-part of my earlier application Ser. No. 731,732, filed May 24, 1968, now U.S. Pat. No. 3,627,507.

Inventors

  • 👤 William P. Langsdorf, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 23:47
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4062; C07F9/4065

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 128 words
A compound of the formula ##STR6## where R 1 is alkyl of one through six carbon atoms, chloroalkyl of one through six carbon atoms containing up to three chlorine atoms, bromoalkyl of one through six carbon atoms, containing up to three bromine atoms, alkoxy alkyl of three through seven carbon atoms, alkenyl of two through six carbon atoms, alkynyl of three through four carbon atoms, phenyl or benzyl; R 2 is hydrogen or methyl; R 3 is hydrogen or methyl; M is zinc or ##STR7## where R 6 and R 7 can be taken together to form a ring that is --(CH 2 ) 2 --O--(CH 2 ) 2 -- or --(CH 2 ) n -- where n is 2-6 and R 8 and R 9 are hydrogen.
Claim 2
Dependent Claim 128 words
A compound of the formula ##STR6## where R 1 is alkyl of one through six carbon atoms, chloroalkyl of one through six carbon atoms containing up to three chlorine atoms, bromoalkyl of one through six carbon atoms, containing up to three bromine atoms, alkoxy alkyl of three through seven carbon atoms, alkenyl of two through six carbon atoms, alkynyl of three through four carbon atoms, phenyl or benzyl; R 2 is hydrogen or methyl; R 3 is hydrogen or methyl; M is zinc or ##STR7## where R 6 and R 7 can be taken together to form a ring that is --(CH 2 ) 2 --O--(CH 2 ) 2 -- or --(CH 2 ) n -- where n is 2-6 and R 8 and R 9 are hydrogen.

References Cited (Backward Citations)

US2909558A Cited
US3361784A Cited
US3354166A Cited
US3784638A Cited
US3712936A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-09-12 1981-03-14 1981-09-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-09-12 1985-03-14 1985-09-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-09-12 1989-03-14 1989-09-13 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag