US2794301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of free-flowing glass beads
Assignee: Flex-O-Lite Manuf Corp
•
Filing: 1953-01-29
•
Granted: 1957-06-04
•
Expires: 1973-01-29
Abstract
No abstract record available.
Inventors
- 👤 Preston D Law
- 👤 D Adrian Vincent L Duval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:45
CPC Classifications
C; C03; C03C; C03C15/00; C03B; C03B19/00; C03B19/10; C03B19/1005; C03B19/102; C03B19/1025; C03C21/00; C03C21/007
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1782169A
Cited
US2038251A
Cited
US2331944A
Cited
US2241511A
Cited
US2334578A
Cited
US2461841A
Cited
US2500801A
Cited
US2713286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |