Patent US4523752A successfully refreshed from Google Patents.
US3034945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming a sheet from glass fragments and plastic
Assignee: Carnegie Institution for Science
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Filing: 1953-03-09
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Granted: 1962-05-15
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Expires: 1973-03-09
Abstract
No abstract record available.
Inventors
- 👤 Bush Vannevar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:40
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/58; B29C70/62; B29B; B29B15/00; B29B15/08; B29B15/10; B29K; B29K2709/00; B29K2709/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PROCESS OF FORMING A STRUCTURALLY STRONG SHEET COMPRISING FORMING A THIN-WALLED, HOLLOW GLASS SHAPE, BREAKING SAID SHAPE INTO SUBSTANTIALLY FLAT, IRREGULARLY OUTLINED GLASS FRAGMENTS, DROPPING SAID FRAGMENTS, IMPARTING ELECTRICAL CHARGES TO SAID DROPPING FRAGMENTS, INTERCEPTING SAID DROPPING, CHARGED FRAGMENTS OVER A PREDETERMINED AREA UNTIL A SHEET MADE UP OF LAYERS OF SAID OVERLAPPED FRAGMENTS IS FORMED, NEUTRALIZING SAID ELECTRICAL CHARGES, AND REPLACING AIR BETWEEN SAID FRAGMENTS WITH A PLASTIC.
Claim 2
Dependent Claim
70 words
A PROCESS OF FORMING A STRUCTURALLY STRONG SHEET COMPRISING FORMING A THIN-WALLED, HOLLOW GLASS SHAPE, BREAKING SAID SHAPE INTO SUBSTANTIALLY FLAT, IRREGULARLY OUTLINED GLASS FRAGMENTS, DROPPING SAID FRAGMENTS, IMPARTING ELECTRICAL CHARGES TO SAID DROPPING FRAGMENTS, INTERCEPTING SAID DROPPING, CHARGED FRAGMENTS OVER A PREDETERMINED AREA UNTIL A SHEET MADE UP OF LAYERS OF SAID OVERLAPPED FRAGMENTS IS FORMED, NEUTRALIZING SAID ELECTRICAL CHARGES, AND REPLACING AIR BETWEEN SAID FRAGMENTS WITH A PLASTIC.
References Cited (Backward Citations)
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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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |