Patent US3243334A successfully refreshed from Google Patents.
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
2026-10-29 18:59
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)
US1009456A
Cited
US2103945A
Cited
US2262493A
Cited
US2390550A
Cited
US2369362A
Cited
US2496609A
Cited
US2610137A
Cited
US3015601A
Cited
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 |