US3203138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing aspheric surfaces
Assignee: Dresser Industries Inc
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Filing: 1963-07-08
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Granted: 1965-08-31
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Expires: 1983-07-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:16
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
APPARATUS FOR PRODUCING ASPHERIC SURFACES INCLUDING A SUPPORTING BASE, A GUIDE MEMBER CARRIED BY THE BASE AND HAVING AN ARCUATE GUIDING SURFACE, A SUPPORT MEMBER RIGIDLY CARRIED BY THE BASE, AN ELONGATE MEMBER MOUNTED IN THE SUPPORT MEMBER FOR PIVOTAL MOVEMENT ABOUT A CENTER IN THE SUPPORT MEMBER, THE ELONGATE MEMBER ENGAGING THE ARCUATE GUIDING SURFACE OF THE GUIDE MEMBER AND BEING TRANSVERSELY MOVABLE WITH RESPECT TO THE GUIDE MEMBER, A SURFACE GENERATING ASSEMBLY CARRIED BY THE ELONGATE MEMBER AT A POINT SPACED LONGITUDINALLY THEREOF FROM THE GUIDE MEMBER AND THE SUPPORT MEMBER, AND A ROTATABLE WORK SUPPORT JUXTAPOSED THE SURFACE GENERATING ASSEMBLY.
Claim 2
Dependent Claim
103 words
APPARATUS FOR PRODUCING ASPHERIC SURFACES INCLUDING A SUPPORTING BASE, A GUIDE MEMBER CARRIED BY THE BASE AND HAVING AN ARCUATE GUIDING SURFACE, A SUPPORT MEMBER RIGIDLY CARRIED BY THE BASE, AN ELONGATE MEMBER MOUNTED IN THE SUPPORT MEMBER FOR PIVOTAL MOVEMENT ABOUT A CENTER IN THE SUPPORT MEMBER, THE ELONGATE MEMBER ENGAGING THE ARCUATE GUIDING SURFACE OF THE GUIDE MEMBER AND BEING TRANSVERSELY MOVABLE WITH RESPECT TO THE GUIDE MEMBER, A SURFACE GENERATING ASSEMBLY CARRIED BY THE ELONGATE MEMBER AT A POINT SPACED LONGITUDINALLY THEREOF FROM THE GUIDE MEMBER AND THE SUPPORT MEMBER, AND A ROTATABLE WORK SUPPORT JUXTAPOSED THE SURFACE GENERATING ASSEMBLY.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |