US3243334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosealing device
Assignee: Millennium Petrochemicals Inc
•
Filing: 1963-03-01
•
Granted: 1966-03-29
•
Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Lake Connie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:50
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81422; B29C66/81433; B29C66/81435; B29C66/83; B29C66/836; B65; B65B; B65B51/00; B65B51/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A THERMOSEALING DEVICE FOR PROVIDING A MULTILINE SEAL THROUGH A PLURALITY OF LAYERS OF THERMOPLASTIC SHEET MATERIAL WITHOUT THE APPLICATION OF PRESSURE, SAID DEVICE INCLUDING A SEALING SURFACE CONSTITUTED BY A PLURALITY OF LONGITUDINALLY EXTENDING AND CLOSELY SPACED RIDGES, EACH OF SAID RIDGES INCLUDING A SUBSTANTIALLY FLAT SEALING SURFACE OF SHARPLY REDUCED WIDTH, THE LONGITUDINAL SIDES OF SAID RIDGES BEING OUTWARDLY INCLINED AND THE BASES OF ADJACENT RIDGES BEING SPACED APART A DISTANCE SUBSTANTIALLY GREATER THAN THE WIDTH OF EACH OF SAID SUBSTANTIALLY FLAT SEALING SURFACES.
Claim 2
Dependent Claim
86 words
A THERMOSEALING DEVICE FOR PROVIDING A MULTILINE SEAL THROUGH A PLURALITY OF LAYERS OF THERMOPLASTIC SHEET MATERIAL WITHOUT THE APPLICATION OF PRESSURE, SAID DEVICE INCLUDING A SEALING SURFACE CONSTITUTED BY A PLURALITY OF LONGITUDINALLY EXTENDING AND CLOSELY SPACED RIDGES, EACH OF SAID RIDGES INCLUDING A SUBSTANTIALLY FLAT SEALING SURFACE OF SHARPLY REDUCED WIDTH, THE LONGITUDINAL SIDES OF SAID RIDGES BEING OUTWARDLY INCLINED AND THE BASES OF ADJACENT RIDGES BEING SPACED APART A DISTANCE SUBSTANTIALLY GREATER THAN THE WIDTH OF EACH OF SAID SUBSTANTIALLY FLAT SEALING SURFACES.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |