Patent US1254263A successfully refreshed from Google Patents.
US1254263A
Expired / Lapsed
US
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Rust-proofing iron and steel surfaces.
Assignee: PARKER RUST PROOF Co OF AMERICA
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Filing: 1917-02-21
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Granted: 1918-01-22
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Expires: 1937-02-21
Abstract
No abstract record available.
Inventors
- 👤 Walter I Oeschger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:09
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/40; C23C22/42
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) | 1921-01-21 | 1921-07-23 | 1922-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-01-21 | 1925-07-23 | 1926-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-01-21 | 1929-07-23 | 1930-01-22 | $7700.00 | Window Closed / Lapsed |