US3271207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat treating process
Assignee: Monsanto Co
•
Filing: 1963-09-25
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Granted: 1966-09-06
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 Davis Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:10
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/56; C03; C03B; C03B27/00; C03B27/02; C03B27/022; C21D1/34; C21D1/44; C21D1/62; C21D1/63; C22; C22F; C22F1/00; C23; C23C; C23C8/00; C23C8/40; C23C8/42; C23C8/44; C23C8/46; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
IN A PROCESS FOR THE HEAT TREATING OF A MATERIAL SELECTED FROM THE GLASS AND A METAL TO CHANGE THE PHYSICAL CHARACTERISTICS THEREOF THE STEP COMPRISING HEATING SAID MATERIAL TO A TEMPERATURE BELOW ITS MELTING TEMPERATURE AND THEREAFTER COOLING SAID MATERIAL BY CONTACTING WITH A MEDIUM COMPRISING CHLORINATED BIPHENYL.
Claim 2
Dependent Claim
49 words
IN A PROCESS FOR THE HEAT TREATING OF A MATERIAL SELECTED FROM THE GLASS AND A METAL TO CHANGE THE PHYSICAL CHARACTERISTICS THEREOF THE STEP COMPRISING HEATING SAID MATERIAL TO A TEMPERATURE BELOW ITS MELTING TEMPERATURE AND THEREAFTER COOLING SAID MATERIAL BY CONTACTING WITH A MEDIUM COMPRISING CHLORINATED BIPHENYL.
References Cited (Backward Citations)
US2304451A
Cited
DE1034333B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |