US3360641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substage illuminating device for microscopes
Assignee: Tasco Sales Inc
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Filing: 1965-10-04
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Granted: 1967-12-26
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Willard H Korte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:16
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/06; G02B21/08; G02B21/086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A MICROSCOPE HAVING A BODY, LENSES MOVABLE CONNECTED TO SAID BODY AND A STAGE PROJECTING FROM SAID BODY BENEATH SAID LENSES, THE IMPROVEMENT THAT COMPRISES A SUBSTAGE ILLUMINATING DEVICE PIVOTALLY CONNECTED TO SAID BODY BENEATTH SAID STAGE, SAID SUBSTAGE ILLUMINATING DEVICE COMPRISNG A CASING HAVING A PAIR OF OPPOSITELY DISPOSED FIRST FACES, A SECOND FACE INTERVENING SAID FIRST FACES, A PAIR OF LATERALLY DISPOSED THIRD FACES INTERVENING SAID FIRST FACES AND OFFSET FROM SAID SECOND FACE, ILLUMINATING
Claim 2
Dependent Claim
78 words
IN A MICROSCOPE HAVING A BODY, LENSES MOVABLE CONNECTED TO SAID BODY AND A STAGE PROJECTING FROM SAID BODY BENEATH SAID LENSES, THE IMPROVEMENT THAT COMPRISES A SUBSTAGE ILLUMINATING DEVICE PIVOTALLY CONNECTED TO SAID BODY BENEATTH SAID STAGE, SAID SUBSTAGE ILLUMINATING DEVICE COMPRISNG A CASING HAVING A PAIR OF OPPOSITELY DISPOSED FIRST FACES, A SECOND FACE INTERVENING SAID FIRST FACES, A PAIR OF LATERALLY DISPOSED THIRD FACES INTERVENING SAID FIRST FACES AND OFFSET FROM SAID SECOND FACE, ILLUMINATING
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |