Patent US3020601A successfully refreshed from Google Patents.
US3020601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated knock-down building structure
Assignee: Individual
•
Filing: 1958-12-16
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Granted: 1962-02-13
•
Expires: 1978-12-16
Abstract
No abstract record available.
Inventors
- 👤 Richard H Stambaugh
- 👤 Fuller John Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:41
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/343; E04B1/34315; A; A01; A01K; A01K1/00; A01K1/02; A01K1/03; A01K1/033; A47; A47B; A47B47/00; A47B47/04; A47B47/042
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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |