US2502445A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of and apparatus for treating latex

Assignee: Anderson Clayton and Co

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Filing: 1942-06-26

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Granted: 1950-04-04

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Expires: 1962-06-26

📄 Original PDF 🌐 Google Patents

Abstract

No abstract record available.

Inventors

👤 Ralph H Fash

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-05 09:01

CPC Classifications

C; C08; C08C; C08C1/00; C08C1/14; Y; Y10; Y10S; Y10S159/00; Y10S159/09; Y10S159/10; Y10S159/26; Y10S524/00; Y10S524/925; Y10S524/926; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/936

Claims Analysis

Total Claims: 2

Claim 1

Independent Claim 47 words

THE METHOD OF TREATING LATEX, WHICH COMPRISES FORMING AN INTIMATE MIST MIXTURE OF LATEX AND AN ACID WHILE MAINTAINING THE PH SUBSTANTIALLY AT THE ISO-ELECTRIC POINT OF THE RUBBER, CAUSING THE SERUM OF THE LATEX TO RE-ASSUME THE LIQUID STATE AND SEPARATING THE COAGULANT FROM THE LIQUID.

Claim 2

Independent Claim 47 words

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1953-04-03	1953-10-03	1954-04-04	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1957-04-03	1957-10-03	1958-04-04	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1961-04-03	1961-10-03	1962-04-04	$7700.00	Window Closed / Lapsed

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