US3672858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mounting disks in glass walls,heat working only once
Assignee: Particle Data Inc
•
Filing: 1970-04-17
•
Granted: 1972-06-27
•
Expires: 1990-04-17
Abstract
Abstract In mounting a disk in a glass wall, the glass wall is heat worked in a small area and a hole made through said heat worked area of the wall with, for example, a hot wire. The heat worked glass around the hole is removed, and the hole is enlarged without heat working to make the hole aperture size and tapered. The aperture is made large enough at one end to receive the disk and small enough at the other end so that the disc will not pass through the hole. The disk is mounted in the aperture and locked into place by heat working beads of glass around the perimeter of the disk.
Inventors
- 👤 Robert H Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:01
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/26; G; G01; G01N; G01N15/00; G01N15/10; G01N15/1031; G01N15/12; G01N15/13
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |