Patent US4201296A successfully refreshed from Google Patents.
US4201296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservative for film
Assignee: GLAHAG BETEILIGUNGS AG A SWISS CORP
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Filing: 1978-10-02
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Granted: 1980-05-06
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Expires: 1998-10-02
Abstract
Abstract A tablet containing compacted camphor powder is sealed in a capsule.
Inventors
- 👤 Heinrich Hrabik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:03
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
28 words
A preservative for protecting a film reel in a magazine, which comprises a capsule and a tablet containing compacted camphor powder, the tablet being sealed in the capsule.
Claim 2
Dependent Claim
28 words
A preservative for protecting a film reel in a magazine, which comprises a capsule and a tablet containing compacted camphor powder, the tablet being sealed in the capsule.
Claim 3
Dependent Claim
93 words
The film reel protecting preservative of claim 1, wherein the magazine has a wall defining an aperture, the capsule is formed by a tubular portion containing the tablet and a cover sheet, the tubular portion having a laterally protruding flange and the cover sheet being sealed to the flange, whereby the flange and cover sheet form a web protruding laterally from the tubular portion, the tubular portion fitting tightly in the aperture and extending into the magazine and the laterally protruding web constituting a stop flange for sealing engagement with the magazine wall.
Claim 4
Dependent Claim
47 words
The film reel protecting preservative of claim 2, wherein the tubular capsule portion has an extended end opposite the cover sheet, the extended tubular capsule portion end defining a recess adjacent the tablet and adapted to receive a tool for piercing the capsule without touching the tablet.
Claim 5
Dependent Claim
29 words
The film reel protecting preservative of claim 3, wherein a cone-shaped end wall constitutes the extended tubular capsule portion end, the end wall having an apex during the recess.
Claim 6
Dependent Claim
24 words
The film reel protecting preservative of claim 3, wherein the extended tubular capsule portion end is cylindrical and the recess is centrally disposed therein.
Claim 7
Dependent Claim
19 words
The film reel protecting preservative of claim 1, wherein the tablet contains up to 10%, by weight, of talcum.
Claim 8
Dependent Claim
18 words
The film reel protecting preservative of claim 6, wherein the tablet contains about 5%, by weight, of talcum.
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) | 1983-05-06 | 1983-11-05 | 1984-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-06 | 1987-11-05 | 1988-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-06 | 1991-11-05 | 1992-05-06 | $7700.00 | Window Closed / Lapsed |