US3216491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic sheet conveying apparatus
Assignee: Brown Machine Company of Michigan Inc
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Filing: 1963-10-28
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Granted: 1965-11-09
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Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Gaylord W Brown
- 👤 Donald J Rise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:18
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/261; B29B; B29B13/00; B29B13/02; B29B13/023; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/25; B29C48/355; B65; B65H; B65H5/00; B65H5/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
SHEET CONVEYING APPARATUS COMPRISING A FRAME; A PAIR OF PARALLEL, SPACED APART, ENDLESS DRIVEN CHAIN CONVEYORS MOUNTED ON SAID FRAME; PLASTIC SHEET PIERCING MEANS SUPPORTED ON SAID CONVEYORS FOR PIERCING OPPOSITE SIDES OF A SHEET TO CONVEY THE LATTER ALONG SAID FRAME TO AND THROUGH A HEATING ZONE; HEATING MEANS MOUNTED AT SAID ZONE FOR HEATING SAID SHEET; GUIDE MEANS SUPPORTED BY SAID FRAME AT EACH SIDE THEREOF AND ENGAGEABLE WITH THE OPPOSITE EDGES OF SAID SHEET TO GUIDE THE LATTER; AND MEANS AT THE DISCHARGE ENDS OF SAID CONVEYORS FOR REMOVING SILVERS OF PLASTIC FROM SAID PIERCING MEANS.
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |