US3405504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transferring system
Assignee: SPX Technologies Inc
•
Filing: 1965-10-21
•
Granted: 1968-10-15
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Robert H Marshall
- 👤 Bernard T Hensgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:29
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/27; B26D7/32; B26D7/325; B65; B65B; B65B25/00; B65B25/06; B65B25/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2442250A
Cited
US2542330A
Cited
US2817513A
Cited
US2907152A
Cited
US3051581A
Cited
US3133784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |