US3246438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation barrier apparatus
Assignee: Borg Warner Corp
•
Filing: 1962-12-31
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Granted: 1966-04-19
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Glen R Harting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:08
CPC Classifications
E; E04; E04H; E04H9/00; E04H9/04; E04H9/06; E04H9/08; E04B; E04B1/00; E04B1/62; E04B1/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US324716A
Cited
US2015568A
Cited
US2335220A
Cited
US2490663A
Cited
US2706315A
Cited
US2888870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |