Patent US3140327A successfully refreshed from Google Patents.
US3140327A
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Process form manufacturing bellows
Assignee: Continental AG
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Filing: 1961-10-23
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Granted: 1964-07-07
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Expires: 1981-10-23
Abstract
No abstract record available.
Inventors
- 👤 Dettmer Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:45
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; B29C; B29C33/00; B29C39/00; B29C43/00; B29C43/006; B29C43/02; B29C43/027; B29C43/32; B29C43/36; B29C43/42; B29D22/00; B29C33/44; B29C33/48; B29K; B29K2027/00; B29K2027/12; B29K2027/18; B29K2105/00; B29K2105/25; B29K2105/251; B29L; B29L2031/00; B29L2031/703; Y; Y10; Y10S; Y10S297/00; Y10S297/08; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A PROCESS FOR PRODUCING A BELLOWS BY SINTERING OF A POWDERED PLASTIC AND COMPRISING THE STEPS OF DEPOSITING A POWDERED PLASTIC INTO A MOLD, ARRANGING ANNULAR SEPARATOR DISCS IN SAID POWDERED PLASTIC SO AS TO DETERMINE THE THICKNESS OF THE WALLS OF THE BELLOWS AND THE FOLDS THEREIN, AND SINTERING THE POWDERED PLASTIC TO FUSE THE PLASTIC INTO AN INTEGRAL BELLOWS.
Claim 2
Dependent Claim
61 words
A PROCESS FOR PRODUCING A BELLOWS BY SINTERING OF A POWDERED PLASTIC AND COMPRISING THE STEPS OF DEPOSITING A POWDERED PLASTIC INTO A MOLD, ARRANGING ANNULAR SEPARATOR DISCS IN SAID POWDERED PLASTIC SO AS TO DETERMINE THE THICKNESS OF THE WALLS OF THE BELLOWS AND THE FOLDS THEREIN, AND SINTERING THE POWDERED PLASTIC TO FUSE THE PLASTIC INTO AN INTEGRAL BELLOWS.
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |