US3222443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding lactams in a polysiloxane mold
Assignee: Polymer Corp
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Filing: 1962-12-04
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Granted: 1965-12-07
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Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl W Dames
- 👤 Richard W Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:34
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; C08G69/18; B; B29; B29C; B29C33/00; B29C33/0011; B29C33/38; B29C33/40; B29C33/405; B29C39/00; B29C39/003; B29C39/006; B29C39/22; B29C39/38; B29C39/40; B29K; B29K2077/00; B29K2883/00; Y; Y10; Y10S; Y10S264/00; Y10S264/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR FORMING A SHAPED POLYACTAM ARTICLE COMPRISING THE STEPS OF CHARGING A HIGHER LACTAM CONTAINING AT LEAST 6 CARBON ATOMS IN THE LACTAM RING INTO A CURED POLYSILOXANE ELASTOMERIC MOLD OBTAINED FROM ACIDFREE SILOXANE POLYMERS, AND POLYMERIZING SAID LACTAM IN SITU INSAID POLYSILOXANE MOLD UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS.
Claim 2
Dependent Claim
50 words
A PROCESS FOR FORMING A SHAPED POLYACTAM ARTICLE COMPRISING THE STEPS OF CHARGING A HIGHER LACTAM CONTAINING AT LEAST 6 CARBON ATOMS IN THE LACTAM RING INTO A CURED POLYSILOXANE ELASTOMERIC MOLD OBTAINED FROM ACIDFREE SILOXANE POLYMERS, AND POLYMERIZING SAID LACTAM IN SITU INSAID POLYSILOXANE MOLD UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |