Patent US3104848A successfully refreshed from Google Patents.
US3104848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film reel
Assignee: —
•
Filing: —
•
Granted: 1963-09-24
•
Expires: 1980-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:57
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B21/328; G11; G11B; G11B23/00; G11B23/02; G11B23/037
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
IN A REEL OF THE CLASS DESCRIBED, A PAIR OF OPPOSED FLANGES, A CENTRAL HUB DEFINING A CENTRAL OPENING, WITH FILM OR THE LIKE TO BE WOUND ON SAID HUB AND BETWEEN THE FLANGES, THE OUTER PERIPHERAL PORTION OF AT LEAST ONE OF SAID FLANGES HAVING A RETAINING SURFACE NORMALLY CONSTRICTING THE SPAN BETWEEN THE FLANGES TO RETAIN FILM OR THE LIKE FROM UNWINDING FROM SAID REEL, AND MEANS SECURED RELATIVELY TO SAID FLANGES, AND EXTENDING INTO SAID CENTRAL OPENING TO ENGAGE A SHAFT WHEN SAID HUB IS INSERTED OVER SAID SHAFT FOR WINDING AND UNWINDING, SAID MEANS BEING SO SECURED RELATIVELY TO SAID FLANGES AS TO FLEX THE FLANGES TO ENLARGE THE SPAN AT SAID RETAINING SURFACE WHEREBY TO FACILITATE WINDING AND UNWINDING OF A FILM OR THE LIKE.
References Cited (Backward Citations)
US1941522A
Cited
US2084165A
Cited
US2151536A
Cited
US2529501A
Cited
US2974892A
Cited
US2973159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |