US3068137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large area film fabrication
Assignee: Union Carbide Corp
•
Filing: 1957-12-23
•
Granted: 1962-12-11
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 William A Scubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/47; B29C66/472; B29C66/4722; B29C65/00; B29C65/48; B29C65/4895; B29C65/50; B29C65/5007; B29C65/5021; B29C65/5028; B29C65/5057; B29C65/52; B29C65/524; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/41; B29C66/43; B29C66/432; B29C66/435; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C66/84; B29C66/843; B29C66/8432; B29C66/433; B29L; B29L2007/00; B29L2007/005; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
METHOD FOR FLAT SEAM BONDING TOGETHER INDIVIDUAL LENGTH OF THERMOPLASTIC FILM OR SHEETING TO FORM THEREFROM A BONDED LARGE AREA SHEET, WHICH COMPRISES PASSING AN OUTSIDE ONE OF SAID INDIVIDUAL LENGTHS FROM A SUPPLY ROLL THROUGH SUCCESSIVE LONGITUDINALLY SPACED NIPS OF PRESSURE ROLLS, PASSING SUCCESSIVE INSIDE LENGHTS OF SUBSTANTIALLY THE SAME WIDTH FROM RESPECTIVE SUPPLY ROLLS RESPECTIVELY TO EACH OF SAID SUCCESSIVE NIPS, FOLDING BACK ON ITSELF AT LEAST ONE OF THE EDGES ALONG THE LENGTH OF AT LEAST ONE OF SAID INDIVIDUAL LENGTHS AFTER IT LEAVES ITS SUPPLY ROLL AND BEFORE IT REACHES ITS NIP, AND APPLYING ADHESIVE TO THE SURFACE OF ONE SHEET CONTIGUOUS TO ANOTHER SHEET BUT LEAVING THE OTHER EDGE OF SAID OUTSIDE SHEET FREE OF ANY ADHESIVE BEFORE THEY REACH THEIR RESPECTIVE NIPS, SAID NIPS SUCCESSIVELY BONDING THE FOLDED EDGE OF EACH SHEET TO THE PLANAR SURFACE OF A CONTIGUOUS SHEET.
Claim 2
Dependent Claim
146 words
METHOD FOR FLAT SEAM BONDING TOGETHER INDIVIDUAL LENGTH OF THERMOPLASTIC FILM OR SHEETING TO FORM THEREFROM A BONDED LARGE AREA SHEET, WHICH COMPRISES PASSING AN OUTSIDE ONE OF SAID INDIVIDUAL LENGTHS FROM A SUPPLY ROLL THROUGH SUCCESSIVE LONGITUDINALLY SPACED NIPS OF PRESSURE ROLLS, PASSING SUCCESSIVE INSIDE LENGHTS OF SUBSTANTIALLY THE SAME WIDTH FROM RESPECTIVE SUPPLY ROLLS RESPECTIVELY TO EACH OF SAID SUCCESSIVE NIPS, FOLDING BACK ON ITSELF AT LEAST ONE OF THE EDGES ALONG THE LENGTH OF AT LEAST ONE OF SAID INDIVIDUAL LENGTHS AFTER IT LEAVES ITS SUPPLY ROLL AND BEFORE IT REACHES ITS NIP, AND APPLYING ADHESIVE TO THE SURFACE OF ONE SHEET CONTIGUOUS TO ANOTHER SHEET BUT LEAVING THE OTHER EDGE OF SAID OUTSIDE SHEET FREE OF ANY ADHESIVE BEFORE THEY REACH THEIR RESPECTIVE NIPS, SAID NIPS SUCCESSIVELY BONDING THE FOLDED EDGE OF EACH SHEET TO THE PLANAR SURFACE OF A CONTIGUOUS SHEET.
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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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |