US2674553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rustproofing
Assignee: Gillette Co LLC
•
Filing: 1950-07-19
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Granted: 1954-04-06
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Expires: 1970-07-19
Abstract
No abstract record available.
Inventors
- 👤 Meyer J Shnitzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:16
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
METHOD OF RUST-PROOFING FERROUS OBJECTS COMPRISING CONTACTING THE SAME WITH AN ACID FROM THE GROUP CONSISTING OF BENZOIC, SALICYLIC AND PHTHALIC ACIDS, THE ACID BEING BROUGHT INTO CONTACT WITH THE OBJECT AS A VAPOR IN COMPANY WITH WATER VAPOR.
References Cited (Backward Citations)
US135578A
Cited
US311294A
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US773368A
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US881221A
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US1012285A
Cited
US949500A
Cited
US1141770A
Cited
US2158278A
Cited
GB596160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |