Patent US3395438A successfully refreshed from Google Patents.
US3395438A
Expired / Lapsed
US
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Metal corrugated roofing sheets
Assignee: PATTEC INVESTMENTS Ltd
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Filing: 1965-10-11
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Granted: 1968-08-06
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Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Seeff Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:23
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/08; B21D11/20; B21D11/206; B21D13/00; B21D13/02; E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; E04D; E04D3/00; E04D3/24; E04D3/30; E04D3/40; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12271; Y10T428/12278; Y10T428/12354; Y10T428/1241; Y10T428/12417
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |