US3307035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring biased fixing-clips for maintaining specimen carriers for electron microscopy in position
Assignee: Individual
•
Filing: 1964-06-29
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Granted: 1967-02-28
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Grasenick Fritz
- 👤 Gessner Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:19
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/20; G; G02; G02B; G02B21/00; G02B21/24; G02B21/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A DEVICE FOR MAINTAINING SPECIMEN CARRIERS IN POSITION ON A SPECIMEN PLATE IN A TREATMENT CHAMBER, PARTICULARLY FOR PREPARATIONS USED IN ELECTRON MICROSCOPY, COMPRISING A SPECIMEN PLATE, A CLAMP MEMBER DETACHABLY MOUNTED ON THE SAID SPECIMEN PLATE AND PROVIDED WITH A PLURALITY OF APERTURES, FIXING CLIPS PARTIALLY LOCATED BETWEEN THE SPECIMEN PLATE AND THE CLAMP MEMBER AND EXTENDING THROUGH THE SAID APERTURES, A SPRING FOR EACH FIXING CLIP LOCATED BETWEEN THE SAID SPECIMENT PLATE AND THE CLAMP MEMBER AND BEARING UPON THE SAID FIXING CLIP IN THE DIRECTION OF THE SPECIMEN PLATE, AND LEVER MEANS FOR LIFTING THE SAID FIXING CLIPS AGAINST THE BIAS OF THE SAID SPRINGS, THE SAID LEVER MEANS BEING TILTABLY ARRANGED BETWEEN THE SAID SPECIMEN PLATE AND THE SAID CLAMP MEMBER IN SUCH A MANNER AS TO BE OPERATED FROM OUTSIDE.
Claim 2
Independent Claim
135 words
A DEVICE FOR MAINTAINING SPECIMEN CARRIERS IN POSITION ON A SPECIMEN PLATE IN A TREATMENT CHAMBER, PARTICULARLY FOR PREPARATIONS USED IN ELECTRON MICROSCOPY, COMPRISING A SPECIMEN PLATE, A CLAMP MEMBER DETACHABLY MOUNTED ON THE SAID SPECIMEN PLATE AND PROVIDED WITH A PLURALITY OF APERTURES, FIXING CLIPS PARTIALLY LOCATED BETWEEN THE SPECIMEN PLATE AND THE CLAMP MEMBER AND EXTENDING THROUGH THE SAID APERTURES, A SPRING FOR EACH FIXING CLIP LOCATED BETWEEN THE SAID SPECIMENT PLATE AND THE CLAMP MEMBER AND BEARING UPON THE SAID FIXING CLIP IN THE DIRECTION OF THE SPECIMEN PLATE, AND LEVER MEANS FOR LIFTING THE SAID FIXING CLIPS AGAINST THE BIAS OF THE SAID SPRINGS, THE SAID LEVER MEANS BEING TILTABLY ARRANGED BETWEEN THE SAID SPECIMEN PLATE AND THE SAID CLAMP MEMBER IN SUCH A MANNER AS TO BE OPERATED FROM OUTSIDE.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |