US3205740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass partitioning apparatus
Assignee: PPG Industries Inc
•
Filing: 1961-06-16
•
Granted: 1965-09-14
•
Expires: 1981-06-16
Abstract
No abstract record available.
Inventors
- 👤 Archie L Groves
- 👤 George W Sherwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:08
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/02; C03B33/023; C03B33/0235; C03B33/037; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57; Y10; Y10T; Y10T83/00; Y10T83/141; Y10T83/148; Y10T83/155; Y10T83/525; Y10T83/541; Y10T83/543
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN APPARATUS FOR RECORDING DEFECT DATA FOR A GLASS SHEET IN PACE WITH THE CONTINUOUS MOVEMENT OF THE LATTER AT VARIOUS SPEEDS ALONG A GLASS LINE, THE COMBINATION COMPRISING, MEANS PROVIDING DEFECT DATA SIGNALS REPRESENTING DEFECTIVE GLASS AREAS AT VARIOUS Z DISTANCES FROM THE LEADING EDGE OF SAID GLASS SHEET, A MAGNETIC DRUM, MEANS FOR REVOLVING SAID DRUM AT A SUBSTANTIALLY UNIFORM SPEED, MEANS FOR RECORDING DEFECT DATA SIGNALS ALONG RECORDING TRACKS AROUND THE DRUM AS SAID DRUM REVOLVES, MEANS TIMING THE MOVEMENT OF SAID GLASS SHEET ALONG SAID LINE, AND MEANS INCLUDING SAID TIMING MEANS FOR OPERATING SAID RECORDING MEANS TO RECORD SAID DEFECT DATA AT POINTS IN SAID RECORDING TRACKS SPACED FROM A LONGITUDINAL REFERENCE POINT COMMON TO SAID DRUM RECORDING TRACKS AND CORRE-
Claim 2
Dependent Claim
126 words
IN APPARATUS FOR RECORDING DEFECT DATA FOR A GLASS SHEET IN PACE WITH THE CONTINUOUS MOVEMENT OF THE LATTER AT VARIOUS SPEEDS ALONG A GLASS LINE, THE COMBINATION COMPRISING, MEANS PROVIDING DEFECT DATA SIGNALS REPRESENTING DEFECTIVE GLASS AREAS AT VARIOUS Z DISTANCES FROM THE LEADING EDGE OF SAID GLASS SHEET, A MAGNETIC DRUM, MEANS FOR REVOLVING SAID DRUM AT A SUBSTANTIALLY UNIFORM SPEED, MEANS FOR RECORDING DEFECT DATA SIGNALS ALONG RECORDING TRACKS AROUND THE DRUM AS SAID DRUM REVOLVES, MEANS TIMING THE MOVEMENT OF SAID GLASS SHEET ALONG SAID LINE, AND MEANS INCLUDING SAID TIMING MEANS FOR OPERATING SAID RECORDING MEANS TO RECORD SAID DEFECT DATA AT POINTS IN SAID RECORDING TRACKS SPACED FROM A LONGITUDINAL REFERENCE POINT COMMON TO SAID DRUM RECORDING TRACKS AND CORRE-
References Cited (Backward Citations)
US2614169A
Cited
US2700148A
Cited
GB795284A
Cited
US3049697A
Cited
US2930228A
Cited
US2909660A
Cited
US2994863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |