Patent US1850533A successfully refreshed from Google Patents.
Patent US3138824A successfully refreshed from Google Patents.
US3138824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film stretching apparatus
Assignee: FMC Corp
•
Filing: 1963-06-04
•
Granted: 1964-06-30
•
Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Brown
- 👤 Robert J Getty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:44
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/10; B29C55/12; B29C55/16; B29C55/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
APPARATUS FOR STRETCHING A BEADED-EDGE FILM INCLUDING A PAIR OF FEED ROLLS, A PAIR OF PULL ROLLS SPACED LONGITUDINALLY FROM SAID FEED ROLLS, AND TWO PAIRS OF ROTATABLE DISCS POSITIONED BETWEEN SAID PAIRS OF FEED AND PULL ROLLS FOR ENGAGING PERIPHERAL PORTIONS THEREOF WITH THE BEADED EGES OF THE FILM AND DIRECTING THE SAME ALONG DIVERGING PATHS AS THEY APPROACH AND ARE ADVANCED BETWEEN SAID PULL ROLLS, THE DISCS OF EACH PAIR OF DISCS BEING DISPOSED IN SPACED APART RELATIONSHIP AND BEING INCLINED IN OPPOSITE DIRECTIONS SO THAT THE AXES THEREOF HAVE AN APEX ALONG THE PATH OF THE FILM TO BE STRETCHED AND WHEREIN THE AXES OF THE RESPECTIVE PAIRS OF DISCS LIE ALONG PLANES WHICH INTERSECT AT A LOCATION BEYOND SAID PAIRS OF DISCS.
Claim 2
Dependent Claim
126 words
APPARATUS FOR STRETCHING A BEADED-EDGE FILM INCLUDING A PAIR OF FEED ROLLS, A PAIR OF PULL ROLLS SPACED LONGITUDINALLY FROM SAID FEED ROLLS, AND TWO PAIRS OF ROTATABLE DISCS POSITIONED BETWEEN SAID PAIRS OF FEED AND PULL ROLLS FOR ENGAGING PERIPHERAL PORTIONS THEREOF WITH THE BEADED EGES OF THE FILM AND DIRECTING THE SAME ALONG DIVERGING PATHS AS THEY APPROACH AND ARE ADVANCED BETWEEN SAID PULL ROLLS, THE DISCS OF EACH PAIR OF DISCS BEING DISPOSED IN SPACED APART RELATIONSHIP AND BEING INCLINED IN OPPOSITE DIRECTIONS SO THAT THE AXES THEREOF HAVE AN APEX ALONG THE PATH OF THE FILM TO BE STRETCHED AND WHEREIN THE AXES OF THE RESPECTIVE PAIRS OF DISCS LIE ALONG PLANES WHICH INTERSECT AT A LOCATION BEYOND SAID PAIRS OF DISCS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |