US3546831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building erection means
Assignee: Behlen Manufacturing Co Inc
•
Filing: 1968-06-05
•
Granted: 1970-12-15
•
Expires: 1988-06-05
Abstract
No abstract record available.
Inventors
- 👤 Jorge Romo
- 👤 Joseph C Kratky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:54
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/35; E04B1/3522; E04B1/343; E04B1/34315; E04B1/34321; E04B1/34336; E04B7/00; E04B7/14; E04G; E04G21/00; E04G21/14; E04G21/16; E04G21/167; E04H; E04H7/00; E04H7/22; E04H7/24; E04H7/30; E04B2001/3588; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49828
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2485475A
Cited
US2527729A
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US2705083A
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US3153303A
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US3092216A
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US3233375A
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US3385014A
Cited
US3372431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |