US2904665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum trap
Assignee: Applied Radiation Corp
•
Filing: 1957-06-18
•
Granted: 1959-09-15
•
Expires: 1977-06-18
Abstract
No abstract record available.
Inventors
- 👤 Hayden S Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:06
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US474797A
Cited
US2374609A
Cited
US732489A
Cited
US1709745A
Cited
US1841332A
Cited
US2434519A
Cited
US2391382A
Cited
US2464703A
Cited
US2510456A
Cited
US2659392A
Cited
US2726681A
Cited
US2858972A
Cited
US2808980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |