US2969027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for maintaining insulation
Assignee: Individual
•
Filing: 1956-04-30
•
Granted: 1961-01-24
•
Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Carroll C Figge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/0404; E04D13/0409; E04B; E04B1/00; E04B1/62; E04B1/70; E04B1/7069; E04B1/7092; E04D13/16; E04D13/1606; E04D13/1681; E04D13/17; E04D13/172; F; F24; F24F; F24F7/00; F24F7/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |