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US3081485A
Expired / Lapsed
US
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Process and apparatus for treating synthetic plastic materials
Assignee: Individual
•
Filing: 1958-11-20
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Granted: 1963-03-19
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Expires: 1978-11-20
Abstract
No abstract record available.
Inventors
- 👤 Steigerwald Karl Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
G; G21; G21K; G21K5/00; G21K5/04; D; D02; D02J; D02J1/00; D02J1/22; D02J1/224; D02J13/00; D02J13/003; D06; D06M; D06M10/00; D06M10/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
AN APPARATUS FOR THE TREATMENT OF FORMED OBJECTS MADE OF ARTIFICIAL MATERIALS WITH THE THERMOPLASTIC CHARACTERISTICS COMPRISING AN ELECTRON GUN FOR PRODUCING AN ELECTRON BEAM, A CHAMBER ENCLOSING SAID ELECTRODE GUN, SAID CHAMBER BEING HELD UNDER SUB-ATMOSPHERE PRESSURE,
Claim 2
Independent Claim
38 words
AN APPARATUS FOR THE TREATMENT OF FORMED OBJECTS MADE OF ARTIFICIAL MATERIALS WITH THE THERMOPLASTIC CHARACTERISTICS COMPRISING AN ELECTRON GUN FOR PRODUCING AN ELECTRON BEAM, A CHAMBER ENCLOSING SAID ELECTRODE GUN, SAID CHAMBER BEING HELD UNDER SUB-ATMOSPHERE PRESSURE,
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |