US2521352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass severing apparatus
Assignee: Corning Glass Works
•
Filing: 1943-06-01
•
Granted: 1950-09-05
•
Expires: 1963-06-01
Abstract
No abstract record available.
Inventors
- 👤 Stuart M Dockerty
- 👤 David E Gray
- 👤 John W Romig
- 👤 William R Wisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:47
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/09; C03B33/095; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/304; Y10T83/00; Y10T83/283
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US979740A
Cited
US1220201A
Cited
US1766638A
Cited
GB265161A
Cited
US1973546A
Cited
US1710893A
Cited
US1744045A
Cited
US1765814A
Cited
FR685758A
Cited
US1990375A
Cited
US2221788A
Cited
US2215980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |