US2829080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent heat-sealable sheets carrying vapor phase corrosion inhibitors
Assignee: Daubert Chemical Co Inc
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Filing: 1955-11-15
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Granted: 1958-04-01
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Expires: 1975-11-15
Abstract
No abstract record available.
Inventors
- 👤 Fessler William Alfred
- 👤 Clemens A Hutter
- 👤 Mcbeth Lloyd Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:54
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/02; B; B32; B32B; B32B27/00; Y; Y10; Y10S; Y10S206/00; Y10S206/819; Y10S428/00; Y10S428/922; Y10S428/923; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A TRANSPARENT HEAT-SEALABLE SHEET COMPRISING A TRANSPARENT ORGANIC FILM BASE RESISTANT TO THE PASSAGE THERETHROUGH OF CORROSION INHIBITING VAPORS, A TRANSPARENT ORGANIC COVERING FILM BONDED TO SAID FILM BASE AND PERVIOUS TO THE PASSAGE THERETHROUGH OF SAID CORROSION INIBITING VAPORS, SAID SHEET HAVING A THICKNESS OF ABOUT 0.5 TO 5 NILS, AND A VAPOR PHASE CORROSION INHIBITOR EMBODIED IN SAID COVER FILM, SAID CORROSION INHIBITOR COMPRISING ABOUT 1 PART UREA, ABOUT 1 PART SODIUM NITRITE, AND ABOUT 2 PARTS MONOETHANOLAMINE BENZOATE, SAID CORROSION INHIBITOR COMPRISING FROM ABOUT 0.1 TO 1 GRAM PER SQUARE FOOT OF SAID SHEET.
Claim 2
Dependent Claim
26 words
A SHEET IN ACCORDANCE WITH CLAIM 7, WHEREIN SAID TRANSPARENT ORGANIC FILM BASE IS AN ETHYLENE GLYCOLTEREPHTHALIC ACID POLYMER, AND THE COVERING FILM IS A POLYACRYLATE.
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) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |