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Patent US3136356A successfully refreshed from Google Patents.
US3136356A
Expired / Lapsed
US
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Impermeable slit-type flexible door
Assignee: Individual
•
Filing: 1962-06-15
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Granted: 1964-06-09
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Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
- 👤 Merton D Mears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:44
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/80; Y; Y10; Y10S; Y10S160/00; Y10S160/08
Claims Analysis
Total Claims: 0
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |