Patent US3344007A successfully refreshed from Google Patents.
US3344007A
Expired / Lapsed
US
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Hollow articles, die elements and methods of forming the same
Assignee: Wyeth Holdings LLC
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Filing: 1966-02-24
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Granted: 1967-09-26
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Expires: 1986-02-24
Abstract
No abstract record available.
Inventors
- 👤 Skoggard Bruno Bengt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:11
CPC Classifications
B; B63; B63B; B63B5/00; B63B5/24; B29; B29C; B29C51/00; B29C51/26; B29C51/28; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/086; B29C70/28; B29C70/40; B29C70/42; B29C70/44; B29C70/54; B29C70/541; B29D; B29D22/00; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29K; B29K2105/00; B29K2105/06; B29L; B29L2031/00; B29L2031/30; B29L2031/3067; Y; Y02; Y02T; Y02T70/00; Y02T70/10; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
THOSE STEPS IN THE METHOD OF FORMING A MASTER SHELL FOR USE IN MAKING OLD ELEMENTS WHICH COMPRISES, FORMING A SANDWICH BY SEALING TWO SHEETS OF ELASTOMERIC FILM LIKE STRETCHABLE MATERIAL TOGETHER AGAINST EACH OTHER AROUND THEIR BORDERS WITH A SHEET OF STRETCHABLE FABRIC REINFORCING MATERIAL HAVING ELASTIC PROPERTIES AND A SETTABLE PLASTIC BETWEEN SAID SHEETS IN THE SPACE WITHIN SAID BORDERS, HOLDING THE BORDERS OF SAID SANDWICH AGAINST LATERAL DEFLECTION CAUSING LATERAL DEFELCTION OF A PORTION OF SAID SANDWICH WITHIN SAID BORDERS, EVACUATING THE AIR FROM THE SPACE
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |