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US2488560A
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US
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Structure of contact masses
Assignee: Individual
•
Filing: 1946-11-25
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Granted: 1949-11-22
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Expires: 1966-11-25
Abstract
No abstract record available.
Inventors
- 👤 Reiltlinger Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:05
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/02; B01J37/024; B01J23/00; B01J23/70; B01J23/74; B01J23/745; B01J23/76; B01J23/80; B01J23/84; B01J23/889; B01J23/8892; B01J37/0215; B01J37/0225; B01J37/16; B01J37/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |