US2520263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating sprues from molded articles
Assignee: EIDP Inc
•
Filing: 1946-12-07
•
Granted: 1950-08-29
•
Expires: 1966-12-07
Abstract
No abstract record available.
Inventors
- 👤 Leroy W Vinal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:46
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/38; Y; Y10; Y10S; Y10S425/00; Y10S425/051; Y10S425/805; Y10S425/806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
METHOD OF SEPARATING A SPRUE FROM A MOLDED ARTICLE PRIOR TO EJECTION FROM THE MOLD COMPRISING TWISTING THE SPRUE IN THE MOLD ABOUT AN AXIS PASSING LENGTHWISE THROUGH THE SPRUE WHILE MAIN-
Claim 2
Dependent Claim
32 words
METHOD OF SEPARATING A SPRUE FROM A MOLDED ARTICLE PRIOR TO EJECTION FROM THE MOLD COMPRISING TWISTING THE SPRUE IN THE MOLD ABOUT AN AXIS PASSING LENGTHWISE THROUGH THE SPRUE WHILE MAIN-
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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) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |