Patent US3498786A successfully refreshed from Google Patents.
US3498786A
Expired / Lapsed
US
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Vesicular materials and methods of use
Assignee: Kalvar Corp
•
Filing: 1968-08-12
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Granted: 1970-03-03
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Expires: 1988-08-12
Abstract
No abstract record available.
Inventors
- 👤 Norman T Notley
- 👤 Irwin M Senentz Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:53
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/60; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/11; Y10S430/112
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2703756A
Cited
US3032414A
Cited
GB850954A
Cited
US3081169A
Cited
US3260599A
Cited
US3244523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |