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Patent US1335982A successfully refreshed from Google Patents.
US1335982A
Expired / Lapsed
US
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Process for producing an alloy of zirconium and lead
Assignee: UNITED STATES FERROALLOYS Corp
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Filing: 1919-08-18
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Granted: 1920-04-06
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Expires: 1939-08-18
Abstract
No abstract record available.
Inventors
- 👤 Petinot Napoleon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:20
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; C22C11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-04-06 | 1923-10-06 | 1924-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-04-06 | 1927-10-06 | 1928-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-04-06 | 1931-10-06 | 1932-04-06 | $7700.00 | Window Closed / Lapsed |