Patent US3248925A successfully refreshed from Google Patents.
US3248925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining optimum time and temperature conditions for the hardening of plastisols
Assignee: Individual
•
Filing: 1965-01-22
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Granted: 1966-05-03
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Expires: 1985-01-22
Abstract
No abstract record available.
Inventors
- 👤 Robert W Warfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:51
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/0058; G; G01; G01N; G01N33/00; G01N33/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A METHOD FOR DETERMINING OPTIMUM TIME AND TEMPERATURE FOR HARDENING PLASTICOL EXPLOSIVES WHICH COMPRISES: (A) ISOTHERMALLY HEATING AT DIFFERENT TEMPERATURES A SERIES OF SAMPLES OF THE PLASTISOL, (B) MEASURING THE RESISTIVITY OF THE SAMPLES AT INTERVALS OF TIME DURING SAID HEATING, CONTINUING SAID MEASURING SO THAT A PLOT OF THE ISOTHERMAL RELATIONSHIP BETWEEN THE LOGARITHM OF RESISTIVITY AND TIME FOR THE PLASTISOL WILL PASS THROUGH A MAXIMUM, A MINIMUM AND THEN LEVEL OFF, (C) PLOTTING FROM SAID MEASUREMENTS THE ISOTHERMAL RELATIONSHIP BETWEEN THE LOGARITHM OF RESISTIVITY AND TIME FOR THE PLASTISOL, AND (D) CONTINUING SAID PLOTTING UNTIL THERE ARE SUFFICIENT POINTS SO THAT A CURVE DRAWN THROUGH SAID POINTS FOR EACH ISOTHERM PASSES THROUGH A MAXIMUM AND A MINI-
Claim 2
Independent Claim
119 words
A METHOD FOR DETERMINING OPTIMUM TIME AND TEMPERATURE FOR HARDENING PLASTICOL EXPLOSIVES WHICH COMPRISES: (A) ISOTHERMALLY HEATING AT DIFFERENT TEMPERATURES A SERIES OF SAMPLES OF THE PLASTISOL, (B) MEASURING THE RESISTIVITY OF THE SAMPLES AT INTERVALS OF TIME DURING SAID HEATING, CONTINUING SAID MEASURING SO THAT A PLOT OF THE ISOTHERMAL RELATIONSHIP BETWEEN THE LOGARITHM OF RESISTIVITY AND TIME FOR THE PLASTISOL WILL PASS THROUGH A MAXIMUM, A MINIMUM AND THEN LEVEL OFF, (C) PLOTTING FROM SAID MEASUREMENTS THE ISOTHERMAL RELATIONSHIP BETWEEN THE LOGARITHM OF RESISTIVITY AND TIME FOR THE PLASTISOL, AND (D) CONTINUING SAID PLOTTING UNTIL THERE ARE SUFFICIENT POINTS SO THAT A CURVE DRAWN THROUGH SAID POINTS FOR EACH ISOTHERM PASSES THROUGH A MAXIMUM AND A MINI-
References Cited (Backward Citations)
US3049410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |