US3344007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow articles, die elements and methods of forming the same
Assignee: Wyeth Holdings LLC
•
Filing: 1966-02-24
•
Granted: 1967-09-26
•
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
2026-10-25 00:42
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
References Cited (Backward Citations)
US648467A
Cited
US2454719A
Cited
US2838435A
Cited
US2841823A
Cited
US2831534A
Cited
US2995781A
Cited
US3161553A
Cited
US3113831A
Cited
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 |