US3277628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of packaging
Assignee: WR Grace and Co
•
Filing: 1962-11-27
•
Granted: 1966-10-11
•
Expires: 1982-11-27
Abstract
No abstract record available.
Inventors
- 👤 John W Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:05
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/70; B29C66/73; B29C66/737; B29C66/7371; B29C65/00; B29C65/02; B29C65/10; B29C65/74; B29C65/743; B29C65/7437; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/135; B29C66/20; B29C66/21; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/4322; B29C66/73711; B29C66/73712; B29C66/73713; B29C66/73715; B29C66/80; B29C66/84; B29C66/849; B65; B65B; B65B51/00; B65B51/10; B65B53/00; B65B53/02; B29C65/14; B29C65/18; B29C66/71; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/0608; B29K2023/0633; B29K2023/0641; B29K2023/065; B29K2995/00; B29K2995/0037; B29K2995/0049; B29K2995/005; B29K2995/0051; B29K2995/0053; B65D; B65D2571/00; B65D2571/00006; B65D2571/00012; B65D2571/00018; B65D2571/00024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
METHOD OF SEALING TOGETHER ADJACENT LAYERS OF HEAT SHRINKABLE PLASTIC FILM COMPRISING THOROUGHLY HEAT SHRINKNG SAID LAYERS AND, THEN, WHILE THE SHRUNKEN LAUERS ARE STILL HOT, PRESSING THEM TOGETHER.
Claim 2
Dependent Claim
29 words
METHOD OF SEALING TOGETHER ADJACENT LAYERS OF HEAT SHRINKABLE PLASTIC FILM COMPRISING THOROUGHLY HEAT SHRINKNG SAID LAYERS AND, THEN, WHILE THE SHRUNKEN LAUERS ARE STILL HOT, PRESSING THEM TOGETHER.
References Cited (Backward Citations)
US3126682A
Cited
US2600216A
Cited
US2783599A
Cited
US2755922A
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US2977729A
Cited
US3041801A
Cited
US2980245A
Cited
US2956896A
Cited
US3005542A
Cited
US3047140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |